Manufacturers/services guide.

A & L Underground, Inc. 201 E. Loula, P.O. Box 878 Olathe, KS 66051 Phone: [phone]

Accessware 2190 North Loop West, Suite 301 Houston, TX 77018 Phone: [phone]

ACT Associates P.O. Box AE Clarence, NY 14031 Phone: [phone]

Advance Products & Systems, Inc. PO Box 53096 Lafayette, LA 70505 Phone: [phone] Fax: [phone]

Advanced Control Systems 2755 Northwood Pkwy. Norcross, GA Phone: [phone]

Advanced Directional Boring 2814 Old Kawkawlin Rd. Kawkawlin, MI 48631 Phone: [phone]

Aerotron-Repco Sales, Inc. 2400 Sand Like Rd. Orlando, FL 32809 Phone: [phone] Fax: [phone]

Agfa-Gevaert N.V. Septestraat 27 2610 Antwerp, Belgium Phone: [phone]

Al-Qahtani Pipe Coating Terminal 5718 Westheimer, Suite 1710 Houston, TX 77057 Phone: [phone]

ALH Systems, Inc. 119 N. Lively Blvd. Elk Grove, IL 60007 Phone: [phone]

TOMALLEN CONSTRUCTION CO. (see our advertisement in this issue) 6218 Miller Drive Edwardsville, IL 62025 Phone: [phone] Fax: [phone]

ALLIED COMMUNICATIONS EQUIPMENT SUPPLY CO., INC. (see our advertisement in this issue) 325 W.S. Omaha Bridge Rd. Council Bluffs, IA 51501 Phone: [phone] Fax: [phone] Sales mgr.: Gregg Barrier, U.S. Sales Robert Papek, International Sales Products: Reconditioned microwave equipment and telecom transmission systems Branch offices: S. Whitley, IN San Angelo, TX

Allied Construction Products, Inc. 5800 Harper Road Solon, OH 44139 Phone: [phone] Fax: [phone]

Allied Piping Products PA, Inc. P.O. Box 848 Valley Forge, PA 19482-0848 Phone: [phone]

ALLIGATOR COMMUNICATIONS,INC. (see our advertisement in this issue) 250 N. Wolfe Rd. Sunnyvale, CA 94086 Phone: [phone] (800) 600-MARS Fax: [phone]

Almetek Industries, Inc. 2 Joy Drive Hackettstown, NJ 07840 Phone: [phone]

Altronic, Inc. 712 Trumbull Ave. Girard, OH 44420 Phone: 21t)) 545-9768

American Air Filter Co., Inc. P.O. Box 35260 Louisville, ky 40232 Phone: [phone]

American Augers, Inc. 3310 Columbus Rd. Wooster, OH 44691 Phone: [phone] [phone] Fax: (216) k64-5514

American Corrosion Services 130 E. Kaliste Saloom Rd. LaFayette, LA 70508 Phone: [phone]

American Excelsior Company PO Box 5047 Arlington, TX 76005 Phone: [phone] Fax: [phone]

American Industrial Valve & Fitting, Inc. 9001 Jameel Houston, TX 77040 Phone: [phone] Fax: [phone]

AMERICAN METER COMPANY 300 Welsh Rd., Building 1 Horsham PA 19044-2234 Phone: [phone]

American-Quality Products PO Box 1510 Stafford, TX 77497 Phone: [phone] Fax: [phone]

American Steel Pipe 2930 N. 16th St. Birmingham, AL 35207 Phone: [phone]

Ametek Mansfield & Green Division 8600 Somerset Dr. Largo FL 34643 Phone: [phone] Fax: (813) 539-W82

Ametek, Inc. Microform Division Brandywine Four Building Chadds Ford, PA 19317 Phone: [phone] Fax: [phone]

Ametek Plymouth Products Division 502 Indiana Ave. Sheboygan, WI 53081 Phone: [phone] Fax: [phone]

Ametek Process & Analytical Instruments Division 150 Freeport Road Pittsburgh, PA 15238 Phone: [phone]

AMETEK, INC. (see our advertisement in this issue) P.O. Box 4239 GCS New York, NY 10163 Phone: [phone]

AMOT CONTROLS 401 First St. Richmond, CA 94801 Phone: [phone] Fax: [phone]

Anchor Pattern International PO Box 1600 Brookshire, TX 77423-1600 Phone: [phone]

AnchorPipe 9310 Campbell Road Houston, TX 77080 Phone: [phone]

Anotec Industries Ltd. 12294 - 104 Ave. Surrey, BC V3V 3H3 Canada Phone: [phone] Fax: [phone]

ANR PIpeline Company 500 Rennaissance Center Detroit, NU 48243

Ant Nachrichtentechnik GmbH Gerberstrasse 33 D-7510 Backnang, Germany Phone: [phone]

Applied Automation/Hartmann & Braun 8801 Jameel, Suite 180 Houston, TX 77040 Phone: [phone] Fax: [phone]

ARB, Inc. 4042 Patton Way Bakersfield, CA 93308 Phone: [phone] Fax: [phone]

Arborchem Products Co. P.O. Box 1567 Ft. Washington, PA 19034 Phone: [phone]

ARCOM CONTROL SYSTEMS INC. (see our advertisement in this issue) 13510 South Oak Street Kansas City, MO 64145 Phone: [phone] Fax: [phone] Sales mgr.: Paul Wallace Parts mgr.: Jim CAator

Argus GmbH Goethestrasse 15 Postfach 1151 D-7505 Ettlingen, Germany Phone: [phone]

ARIEL CORPORATION (see our advertisement in this issue) 35 Blackjack Road Mt. Vernon, OH 43050 Phone: [phone] Fax. [phone] Sales mgr.: Bill Litchfield Parts mgr.: Tom Hubble Service mgr.: Kriss McDonald Products: Reciprocating gas compressors, 25 to 5700 BHP Branch offices: Denver, CO Gerry Stephens Phone: [phone] New Orleans, LA Lou Armstrong Phone: [phone] Houston, TX Don Wilson Phone: [phone]

ARIES INDUSTRIES INC. (see our advertisement in this issue) W 22641 Main St Sussex, WI 53089 Phone: [phone]

Ark Engineering & Technical Services 90 Pond St. Wrentham, MA 02093 Phone: [phone]

Armortec Incorporated 3150 Holcombe Bridge Rd. Suite 300 Norcross, GA 30071 Phone: [phone]

Arnel Inc. 3145 Bordentown Ave. Parlin, NJ 08859 Phone: [phone] Fax: [phone]

ARS, Inc. 2400 Sand Lake Road Orlando, FL 32809-7666 Phone: [phone] Fax: [phone]

ASSEN EXPORTS, INC. (see our advertisement in this issue) 10402 Reisterstown Rd., Suite 203 Owings Mills, MD 21117 Phone: [phone] Fax: [phone] Toll Free: [phone] Sales/Parts/ Service mgr.: Jay Shah Night Phone: [phone]

AT&T Tridom 840 Franklin Ct. Marietta, GA 30062 Phone: [phone] Fax: [phone]

Atco Noise Management 5115 Crowchild Tr. S.W. Calgary, Alberta T3E 1T9 Canada Phone: [phone]

Atkomatic Valve Company 141 S. Sherman Dr. Indianapolis, IN 46201-4455 Phone: F317) 357-8421 Fax: [phone]

Augers Unlimited P.O. Box 528 Ashland, OH 44805 Phone: [phone]

Automation Electronics 111 Bighorn Road Casper, WY 82601 Phone: [phone]

AUTOMATION PRODUCTS, INC. (see our advertisement in this issue) 3030 Max Roy Street Houston, TX 77008-"81 Phone: [phone] [phone] Fax: [phone]

AVO International 510 Township Line Rd. Blue Bell, PA 19422 Phone: [phone]

AVTEC 4335 Augusta Hwy. Gilbert, 9C 29054 Phone: [phone]

Aydin Systems Div. 30 Great Oaks Blvd. San jose, CA 95119

Bacharach, Inc. 625 Alpha Drive Pittsburgh PA 15238 Phone: [phone]

Bafco International Company 14230 Interdrive E. Houston, TX 7032 Phone: [phone]

Bailey Controls Company 29801 Euclid Ave. Wickliffe, OH 44092 Phone: [phone]

Baker CAC 22001 Northpark Dr. Houston, T)(77339 Phone: [phone]

Baker Performance Chemicals 3900 Essex Lane Houston, TX 77210 Phone: [phone] Fax: [phone]

Bally Engineering Structures P.O. Box 98 Bally, PA 19503 Phone: [phone]

Barbco P.O. Box 80837 Canton, OH 44706 Phone: [phone]

Pasco Limited Cathodic Protection House Harding Lane, Fair Oak Eastleigh, Hampshire S050 8GL England Phone: [phone]

Bascom-Turner Instruments, Inc. 111 Downey Street Norwood, MA 02062-2664 Phone: [phone]

Baymont Technologies, inc. 14100 58th St. N. Clearwater, FL 34620 Phone: [phone]

Bayou Pipe Bending Co. P.O. Box 11010 New Iberia, LA 70562-1010 Phone: [phone]

Beaird Industries, Inc. P.O. Box 31115 Shreveport, LA 71130-1115 Phone: [phone]

BRADLEY B. BEAN, PE (see our advertisement in this issue) 1517 N. Weber St. Colorado Springs, CO 80907 Phone: [phone] Sales mgr.: Brad Bean Products: Engineering and software services. Gasworks - Network Analysis software, GWCalc - PC based flow calculator, DrugTest - Random selection software, full range of technical services.

BELL'S WELDERS TENTS (see our advertisement in this issue) 514 Ella St. Beatrice, NE 68310 Phone: [phone] Fax: [phone]

BENDER CORROSION ASSOCIATES (see our advertisement in this issue) 1200 Everman Parkway, P.O. Box 40366 Fort Worth, TX 76140 Phone: [phone] Fax: [phone]

BERCO SERVICES, INC. (see our advertisement in this issue) 9800 Centre parkway, Suite 8,50 Houston, TX 77036 Phone: [phone] Sales mgr. B. J. Greer Products: Pipeline installation by horizontal directional drilling

Berg Steel Pipe Corp. 9225 Katy Freeway 428 Houston, TX 77024 Phone: [phone] Fax: [phone]

BETHLEHEM STEEL CORPORATION 215 South Front Street Steelton, PA, 17113 Phone: [phone] Fax: [phone] Toll Free: [phone] Sales mgr.: James A. Cichelli Products: 20 "OD to 42" OD line pipe, API and ASTM grades Branch: Brohman-Reid, Inc. 14425 Torrey Chase Blvd., Suite 340 Houston, TX 77014 Phone: [phone]

Bil-Jax, Inc. 595 E. Lugbill Rd. Archbold OH 43502 Phone: [phone]

Bitumastic Plc Hedgeley Road Hebburn, Tyne & Wear NE 31 1EY England Phone: [phone] Fax: [phone]

Bitumes Speciaux S. A. Zone Inustrielle A - BP 88 Aubevoye, 27940 France Phone: [phone]

BKW, INC. (see our advertisement in this issue) Box 581611 Tulsa, OK 74168

Blackburn Manufacturing Co. P.O. Box 86 Neligh NE 68756 Phone: [phone]

BLACKHAWK INDUSTRIES, INC. (see our advertisement in this issue) 409 E. First St. Tulsa, OK 74120 Phone: [phone] Fax: [phone]

Blohm+Voss AG Hermann-Blohm-Strabe 3 Hamburg, 20457 Germany Phone: [phone]

Bluewater Constructors, Inc. 5337 Dow Road Houston, TX 77040 Phone: [phone] Fax: [phone]

BMS, Div. of Ablestar Corp. P.O. Box 480 Stoughton, MA 02072-0480 Phone: [phone]

Bonded Products, Inc. P.O. Box 39 West Chester, PA 19382 Phone: [phone] Fax: [phone]

Bor It mgr. Co. Inc. P.O. Box 789 Ashland, OH 44805 Phone: [phone] [phone] Fax: [phone]

Borsig GmbH Berliner Str. 27-33 D-1000 Berlin 27, Germany Phone: [phone]

BOWGEN FUEL SYSTEMS 2745 W. Walnut Lawn Springfield, MO 65807 Phone: [phone] [phone] Fax: [phone]

BRISTOL BABCOCK, INC. (see our advertisement in this issue) 1100 Buckingham St. Watertown, CT 06795 Phone: [phone] Fax: [phone] Vice President of Sales & Marketing: Fred Merrill National Sales Manager: Art McFerran International Sales Manager: John Spagnoletti National Field Service Manager: John Murphy Products: Teletrans TM Smart transmitters, Signature dP, pressure, temperature and liquid level transmitters, network 3000 process control/ SCADA instruments, software and systems, model 624 line of pneumatic regulators and controllers, voltmeters, ammeters pressure switches, recorders, single loop controllers, systems engineering and application support. Branch offices; Watertown, CT Phone: [phone] Monroeville, PA Phone: [phone] Oak Brook, IL Phone: [phone] Roswell, GA Phone: [phone] Houston, CA Phone: [phone] Ontario, CA Phone: [phone] Winter Park, FL Phone: [phone] Rexdale, Ontario Canada Phone: [phone] Mexico, D. F. Phone: [phone] Kidderminster, Worcestershire England Phone: [phone] Mouy, France Phone: [phone]

British Gas PLC Online Inspection Centre P.O. Box 3 Cramlington, Northumberland NE23 9EQ England, U.K. Phone: [phone]

Broadcast Communications P.O. Box 730 New Glarus, WI 53574-0730 Phone: [phone]

Brooks Instrument PO Box 450 Highway 301 N. Statesboro, GA 30549 Phone: [phone]

Brooks Instrument West Vine Street Hatfield, PA 19440 Phone: [phone]

Brown Boveri & Company, Inc. CH-5401 Baden, Switzerland

Marshall J. Brown Company, Inc. PO Box 868 Stafford, TX 77497-0868 Phone: [phone] Fax: [phone]

WAYNE BROYLES CATHODIC SERVICES, INC. (see our advertisement in this issue) 250 N. Wolfe Rd. P.O. Box 924947 Houston, TX 77292-4947 Phone: [phone] Fax: [phone]

Bruest Sales P.O. Box 827 Independence, KS 67301 Phone: [phone]

BTR Gas Measurement 805 N. Brady St. DuBois, PA 15801

BTR Valve Sealants, Inc. 430 North Lexington Ave. Pittsburgh, PA 15208 Phone: [phone]

Burling Instruments, Inc. P.O. Box 298 Chatham, NJ 07928 Phone: [phone]

Byers Engineering Company, 6285 Barfield Rd. Atlanta, GA 32308-4304 Phone: [phone], Ext. 303

Cabot Safety, Corporation 90 Mechanic St. Southbridge, MA 01550 Phone: [phone]

Calculated Industries 22720 Savi Ranch Pkwy. Yorba Linda, CA 92687 Phone: [phone]

Canadoil Forge, Ltd. 805 Alphonse-Deshaies Blvd. Becancour, Quebec GOX 1BO Canada Phone: [phone]

Canusa Coating Inc. A Div. of Shaw Pipe Ltd. 25 Bethridge Road Rexdale, Ontario M9W 1M7 Canada Phone: [phone]

Capitol Trencher Corp. P.O. Box 7289 Austin, TX 79762 Phone: [phone] Fax: [phone]

Carburetion & Turbo Systems, Inc. 1897 Eagle Creek Blvd. Shakopee, MN 55379 Phone: [phone] Fax: [phone]

CARLTON INDUSTRIES, INC. (see our advertisement in this issue) PO Box 280 LaGrange, Tx 78945 Phone: [phone] [phone] Products: Industrial Printers

Carolina Moldings, Inc. P.O. Box 35273 Charlotte, NC 28235 Phone: [phone] Fax: [phone]

Carsonite International 1301 Hot Springs Rd. Carson City NV 89706-0601 Phone: [phone] Fax: [phone]

J.I. Case Co. 700 State St. Racine, WI 53404 Phone: [phone]

Catalytic Heater Company PO Box 188 Terrell, TX 75160 Phone: [phone] Fax: [phone]

Caterpiller Inc. - Engine Division P.O. Box 610 Mossville, IL 61552 Phone: [phone]

Caterpiller, Inc. 100 N. E. Adams St. Peoria, IL 61629 Phone: [phone]

Cathodic Protection Co., Ltd.

Venture Way I

Grantham, Lincs N931 7XS England Phone: [phone] Fax: [phone] Telex: 377525

CATHODIC PROTECTION SERVICES (see our advertisement in this issue) 7211 Regency Sq. Blvd. Houston, TX 77036 Phone: [phone]

CBI Industries 800 Jorie Blvd. Oak Brook, IL 60521-2216 Phone: [phone]

CEA Instruments Inc. 16 Chestnut St. Emerson, NJ 07630 Phone: [phone]

Center Line Equipment 38203 FM 1774 Magnolia, TX 77355 Phone: [phone]

CENTRAL PLASTICS COMPANY (see our advertisement in this issue) 1901 W. Independence Shawnee, OK 74801 Phone: [phone] Fax: [phone] Toll Free Fax: [phone] Sales mgr.: Rocky Wade

A.B. Chance Company 210 N. Allen St. Centralia, MO 65240 Phone: [phone] Fax: [phone]

Chandler Products 1491 Chardon Rd. Cleveland, OH 44117 Phone: [phone]

Cherrington Corporation P.O. Box 254788 Sacramento, CA 95829

Chisso Engineering Co., Ltd. 3-3 Uchisaiwai_Cho, 1-Chome Chiyoda Ku Tokyo, 100 Japan

CHRISTIE MANUFACTURING CO., INC. (see our advertisements in this issue) PO Box 386 Frisco, TX 75034 Phone: [phone] Fax: Metro 355-2211

CITEL AMERICA, INC. (see our advertisement in this issue) 1111 Parkcentre Blvd., Suite 474 Miami, FL 33169 Phone: [phone]) 248-3548 Sales mgr: Mr. Fabrice Larmier Products: Surge Arrestors

CMPS&F (QLD) Pyy. Ltd. - Oil & Gas Group 200 Mary Street Brisbane, QLD 4000 Australia Phone: [phone] Fax: [phone]

CNG Services of Pittsburgh, Inc. 7125 Saltsburg Rd. Pittsburgh, PA 15235 Phone: C412) 795-4698

Coade, Inc. 12777 Jones Rd. Suite 480 Houston, TX 77070 Phone: [phone] Fax: [phone]

Coastal Technologies PO Box 624 Hampton, SC 29924 Phone: [phone]

Coastcom 1151 Harbor Bay Pkwy. Alameda, CA 94502-6511 Phone: [phone] Fax: [phone]

Coates Field Service, Inc. P.O. Box 25277 Oklahoma City, OK 73125-0277 Phone: [phone]

Cob Industries, Inc. P.0, Box 361175 Melbourne, FL 32936 Phone: [phone]

Cogsdill Tool Products, Inc. P.O. Box 7007 Camden, SC 29020 Phone: [phone]

COMBUSTION CONTROL CORPORATION (see our advertisement in this issue) 2527 Fairway Drive Sugar Land, TX 77478 Phone: [phone]

Comcore Utilities Products, Inc. 5201 Leesburg Pike Suite 1604 Falls Church, VA 22041 Phone: [phone] Fax: [phone]

COMMCORP INC. (see our advertisement in this issue) 127 Rt.206 Trenton, NJ 08610 Phone: [phone]

Commercial Cleaning Co. 161 Queen Ann Road Harwich, MA 02645 Phone: [phone] Fax: [phone]

Commercial Coating Services, Inc. PO Box 3296 Conroe, TX 77305-3296 Phone: [phone] Fax: [phone]

Commercial Resins Co. 2001 N. 170th East Ave. Tulsa, OK 74116 Phone: [phone] Fax: [phone]

Compression Coat, Inc. 3513 N. Frazier Conroe, TX 77303-1430 Phone: [phone]

Compressor Components PO Box 1209 Odessa, TX 79760 Phone: [phone] Fax: [phone]

Compressor Engineering Corp 5440 Alder Houston, TX 77081-1798 Phone: [phone] Fax: [phone] Conam Inspection Inc. 1245 W. Norwwod Ave. Itasca, IL 60143 Phone: [phone]

Conbraco Industries Apollo Ball Valve Div. P.O. Box 247 Matthews, NC 28106

Concrete Systems, Inc. Commercial Ave. Hudson, NH 03051 Phone: [phone]

Confab Industrial Alameda Rio Negro 433-Alphaville Barueri, Sao Paulo 06400 Brazil Phone: [phone]

Conoco Specialty Products 6650 Roxburgh, Suite 180 Houston, TX 77041 Phone: [phone]

Conoco, Inc. PO Box 4784 Houston, TX 77210 Phone: [phone]

Consolidated Pipe & Supply Co. P.O. Box 2472 Birmingham, AL 35201 Phone: [phone]

Conti Enterprises, Inc. 3001 S. Clinton Ave. South Plainfield, NJ 07080 Phone: [phone]

Control Components, Inc. 22591 Avenida Empresa Rancho Santa Margarita, CA 92688 Phone: [phone]

Control Devices, Inc. 2009 W. Detroit St. Broken Arrow, OK 74012 Phone: (918)

258-6068 Fax: [phone]

Control Networks Corp. 2062 Bering Dr. San Jose, CA 95131 Phone: [phone]

Control Systematologists, Inc. 113 North Pat. St. Scott, CA 70503 Phone: [phone]

Control Technology PO Box 2908 Bay St. Louis, MS 39521 Phone: [phone]

Controlotron 155 Plant Ave. Hauppauge, NY 11788 Phone: [phone]

Cook Manley-Dover Resources 11851 Ormandy Houston, TX 77035 Phone: [phone]

C. Lee Cook, A Dover Resources Company P.O. Box 1038 Louisville, KY 40201-1038 Phone: [phone] Fax: [phone]

Cooper Industries - Cooper Energy Services 1105 N. Sandusky St. Mt. Vernon, OH 43050 Phone: [phone] Fax: [phone]

Cooper Oil Tool (Cameron, W-K-M, Demco) P.O. Box 1212 Houston, TX 77251 Phone: [phone]

Coroplast Fritz Muller Kg Wittener Strasse 271 D-5600 Wuppertal 2 Germany Phone:[phone]

Corrosion Control Products Company 17311 South Main Street Gardena, CA 90248-3196 Phone: [phone] Fax: [phone]

Corrpro Companies, Inc. 1090 Enterprise Drive Medina, OH 44256 Phone: [phone]

Cortest, Inc. 11115 Mills Rd. Suite 102 Cypress, TX 77429 Phone: [phone]

Cosmos Gas Detection Systems PO Box 70498 Seattle, WA 98107 Phone: [phone]

Costain Land & Marine 15311 W. Vantage Parkway Houston, TX 77032 Phone: [phone]

Costain Oil, Gas Process Ltd.

Land & Marine Division

Port Causeway Bromborough Merseyside L62 4TG England Phone: [phone]

Coulter Services Company P.O. Box 691448 Houston, TX 77269-1448 Phone: [phone] Fax: [phone]

Coupling Systems, Inc. Hafner Avenue Pittsburgh, PA 15223

CP industries 2214 Walnut St. McKeesport, PA 15132 Phone: [phone]

John Crane Inc. 6400 W. Oakton St. Morton Grove, IL 60053 Phone: [phone]

CRANE MANUFACTURING INC. (see our advertisement in this issue) 5531 E. Admiral Tulsa, OK 74115-8411 Phone: [phone] Fax: [phone]

CRC-EVANS PIPELINE INTERNATIONAL,INC. (see our advertisement in this issue) 13100 Northwest Freeway, Suite 600 Houston, TX 77040 Phone: [phone] Fax: [phone] Telex: 166115 UT P.O. Box 3227 Houston, TX 77253-3227 CEO, president, chairman: C. Paul Evans Exec. VP: Wyn D. Norris VP-mfg .& engr.: Joe A. Cunningham VP-int'l. sales: Gus Meijer VP-sales oper.: David A. Nicholson mgr.-spec. equip.: Bill Bell Products: Manufacture and ale of complete line of specialized pipeline construction and rehabilitation equipment: Bending machines, bending mandrels, bending sets, internal pneumatic line-up clamps; shot blast machines; cleaning, coating and tape wrapping equipment (stationary and line traveling); pipe end preparation machines; beveling machines; belt slings; roli-cradles; leak detectors; double jointing systems; stationary coating plants; cement mortar lining plants; specialized pipe handling systems for onshore and offshore applications; automatic pipe welding systems; and full line pipeline contractors' supply items. Divisions: CRC-Evans Automatic Welding P.O. Box 32:,7 Houston, TX 77253-3227 Phone: [phone] Telex: 166141 UT Fax: [phone] President: Dick Jones Sales dir.: Bob Teale CRC-Evans Automatic Welding (Field Operations) 11601 North Houston-Rosslyn Rd. Houston, TX 77086 Phone: [phone] Telex: 240715 CRCFS UR Fax: [phone] mgr., field oper.: Mike Doherty mgr., new Prod. dev.: Brian Laing CRC-Evans Supply 10902 East Independence Tulsa, IL 74116 Phone: [phone] Fax: [phone] Gen.mgr.: Jerry Quillin CRC-Evans Supply 18828 Porterville Hwy. P.O. Box 80536 (93380) Bakersfield, CA 93308 Phone: [phone] Fax: [phone] Branch mgr.: Jim Jackson CRC-Evans Rehabilitation Systems 13502 Almeda School Road Houston, TX 77047 Phone: [phone] Fax: [phone] President, sales mgr.: Gordon Chapman VP: Sidney Taylor Branch offices: P.O.box 50368 Tulsa, OK 74150 Phone: [phone] Telex: 4637028 CRCE UI Fax: [phone] US sales coord.: Clayton Lawson Service mgr.: Doug Chapman Chief eng.: Chris Dunn 2301 Rte. 37 East Toms River, NJ 08753 Phone: [phone] Sales rep.: Ray Keller 2005-80 Avenue Edmonton, Alberta Canada T6P 1P8 Phone: [phone] Telex: 0372966 EDM Fax: [phone] VP, gen. mgr.: Lawrence Wenger Sales mgr., auto. welding: Kevin Wenger The Pipeline Centre Rossendale Road Industrial Estate Burnley BB11 5SW United Kingdom Phone: [phone] Telex: 635018 CRC UK G Sales mgr., pipeline equip.: Roger Byford Sales mgr., auto. welding: Bernhard Russheim Westerdorpsstraat 4 3871 AX Hoevelaken P.O. Box 66 3870 DC Hoevelaken The Netherlands Phone: [phone] and 36628 Telex: 79174 CRCPL NL Fax: [phone] VP, int'l. sales: Gus Meijer Subsidiary: CUPS, Inc. 1116 Indiana So. Houston, TX 77587 Phone: [phone] Fax: [phone] President: Gordon Chapman VP, mktg.: Gerald Chapman

CRC-Evans Rehabilitation Systems, Inc. 13502 Almeda School Rd. Houston, TX 77047 Phone: [phone]

Crouse-Hinds Co. Syracuse, NY 13201

Cryogenic Group Inc. 25720 Jefferson Ave. Murrieta, CA 92562 Phone: [phone]

CSC Scientific Company, Inc. 8315 Lee Highway Fairfax, VA 22031 Phone: [phone]

CTE 234 SW 12 Ave. Ft. Lauderdale, FL 33442 Phone: [phone]

CTI Inc. P.O. Box 780 Corinth, MS 38834 Phone: [phone] Fax: [phone]

CUES, INC. (see our advertisement in this issue) 3501 Vineland Rd. Orlando, FL 32811 Phone: [phone] Fax: [phone]

Cummins Engine Co. Inc. 500 Jackson St. Columbus, IN 47201 Phone: [phone]

Michael Curran & Associates 7700 San Felipe, Suite 340 Houston, TX 77063 Phone: [phone] Fax: [phone]

Custom Switches P.O. Box 111 Manvel, TX 77578 Phone: [phone]

Cyberex, Inc. 7171 Industrial Park Blvd. Mentor, OH 44060 Phone: [phone]

Cygnus Instruments Inc. P.O. Box 3127 Annapolis, MD 21403 Phone: [phone]

D & R Sales Company, Inc. P.O. Box 270060 Corpus Christi, TX 78427-0060 Phone: [phone] Fax: [phone]

Dalton Electric Heating Co., Inc. 28 Hayward St. Ipswich, MA 01938 Phone: [phone]

Daniel Industries, Inc. P.O. Box 19097 Houston, TX 77224 Phone: [phone]

DANIEL VALVE COMPANY (see our advertisement in this issue) P.O. Box 40421 Houston, TX 77240-0421 Phone: [phone]

DAS MANUFACTURING, INC. (see our advertisement in this issue) 3610 Cinnamon Trace Dr. Valrico, FL 33594 Phone: [phone] Fax: [phone]

Dataradio Corporation 6160 Peachtree Dunwoody Rd. #C-200 Atlanta, GA 30328 Phone: [phone]

Davis Corp. PO Box 177 Healdton, OK 73438 Phone: [phone] Fax: [phone]

DCT Instruments 1165 Chambers Rd. Columbus, OH 43212 Phone: [phone]

Deepwater Corrosion Services, Inc. 7007 Winding Walk Houston, TX 77095 Phone: [phone]

John Deere Industrial Equipment Company 400 19th St. Moline, IL 61265 Phone: [phone]

DeFelsko Corporation 802 Proctor Ave P.O. Box 676 Ogdensburg, NY 13669 Phone: [phone] Fax: [phone]

Delphian Corp. 200 Pegasus Ave. Northvale, NJ 07647 Phone: [phone]

Denso-Export GmbH Felderstr. 24 Leverkusen, 51371 Germany Phone: [phone]

Denso North America Inc. 75 Shields Court, Unit Suite 3 Markham, Ontario L3R 9T4 Canada Phone: [phone]

Det Norske Veritas Industry Inc. 16340 Park Ten Place Suite 100 Houston, TX 77094 Phone: [phone] Fax: [phone]

Detector Electronics Corp. 6901 W. 110th St. Minneapolis, MN 55438 Phone: [phone]

Detroit Diesel Corporation 13400 Outer Drive W. Detroit, MI 48239-4001 Phone: [phone]

Dhatec Bevel Protectors Annadal 43 Valkenswaard, 5551 BM Netherlands Phone: [phone]

Dieterich Standard P.O. Box 9000 Boulder, CO 80301 Phone: [phone] Fax: [phone]

Dig-It Manufacturing 1501 1st Ave. Mendota, IL 61342 Phone: [phone]

Dimensions Unlimited 1800 Buerkle Rd. St. Paul, MN 55110 Phone: [phone] Fax: [phone]

DISINDUSTRIAL SERVICES-DIV. OF HYDROCHEM (see our advertisement in this issue) 6210 Rothway Houston, TX 77040 Phone: [phone]

DITCH WITCH (see our advertisement in this issue) P.O. Box 66 Perry, (405) 73077 Phone: [phone] Fax: [phone] Marketing Manager: David Woods Parts Manager. John Wornom Service Manager. Jim E. Smith Phone: [phone] Products: Underground construction equipment including trenchers, vibratory plows, trenchless technology equipment and pipe and cable locating systems.

Diversified Energy Products, Inc. 11903 FM 529 Houston, TX 77041 Phone: [phone]

DMD Division Dresser Industries, Inc. 41 Fisher Avenue Bradford, PA 16701 Phone: [phone]

Dollinger Corporation 101 Spruce Street Creek, VA 24147 Phone: [phone] Fax: [phone]

Dow Chemical Company, GAS/SPEC Technology Grp. 400 W. Sam Houston Pkwy. S. Houston, TX 77042 Phone: [phone]

Dow Chemical U.S.A. 2020 Dow Center Midland, MI 48674 Phone: [phone]

Dragon Corrosion International Quarry Street, Nantgarw Cardiff, South Wales CF4 7SY United Kingdom Phone: [phone]

The Dredging & Construction Co. Ltd. 74 St. Peter's Rd., Wes Lynn King's Lynn, Norfold PE34 3JT England Phone: [phone]

Dresser Measurement PO Box 42176 Houston, TX 77242 Phone: [phone] Fax: [phone]

Dresser-Rand P.O. Box 560 Olean, NY 14760 Phone: [phone]

Dresser-Rand Compression Services Division 20602 E 81st St. Broken Arrow, OK 74014 Phone: [phone]

Drilled Crossings, Inc. P.O. Box 486 Arnaudville, LA 70512-7802 Phone: [phone] Fax: [phone]

Mage/DSI GmbH & Co. Kirschenfeldstr.11 7401 Nehren, Germany Phone: 07473

Du Pont Co. Process Instruments P.O. Box 6101 Neward, DE 19714-6101 Phone: [phone]

E.I. du Pont de Nemours & Co. Biochemical Dept. 1007 Market Street Wilmington, DE 19898

Dupont Building Corporation PO Box 13 Cameron, LA 70631 Phone: [phone] Fax: [phone]

Dupont Canada PO Box 2000 Streetsville, Ontario 25M 2H3 Canada Phone: [phone]

Durichlor 51 Anode Co. P.O. Box 1363 Dayton, OH 45401 Phone: [phone] Fax: [phone]

DVCO Fuel System,, Inc. 702 W. 48th Ave., Ste. J Denver, CO 80216 Phone: [phone]

DWIGHT'S ENERGYDATE, INC. (see our advertisement i, this issue) 1633 Firman, Dr. Richardson, TX 75081 Phone: [phone]

DYNALCO CONTROLS (see our advertisement in this issue) 3690 N.W. 53 St. Ft. Lauderdale, FL 33309 Phone: [phone]

Eagle Mfg. Inc. 3102-C East Pine Tulsa, OK 74110 Phone: [phone] Fax: [phone]

Eastern Metal/USA-Sign 1430 Sullivan St. Elmira, NY 14901-1698 Phone: [phone] [phone] Fax: [phone]

Ecology and Environment, Inc. 368 Pleasantview Dr. Lancaster, NY 14086-1397 Phone: [phone]

EDO ANGI PO Box 39, 265 N. Janesville St. Milton, WI 53563 Phone: [phone]

Allan Edwards, Inc. P.O. Box 9457 Tulsa, OK 74107 Phone: [phone]

Efficiency Production Co. P.O. Box 24126 Lansing, MI 48909 Phone: [phone]

EG & G Instruments Princeton Applied Research PO Box 2565 Princeton, NJ 08543 Phone: [phone] Fax: [phone]

EG&G CHANDLER ENGINEERING (see our advertisement in this issue) PO Box 470710 Tulsa, OK 74147-0710 Phone: [phone] Fax: [phone]

EG&G Electro-Optics 35 Congress Street Salem, MA 01970 Phone: [phone]

EIP Microwave, Inc. 1589 Centre Pointe Drive Milpitas, CA 95035 Phone: [phone] Fax: [phone]

Electro-Physik USA, Inc. 778 W. Algonquin Road Arlington Heights, IL 60005 Phone: [phone]l6

Electrochem Lithium Batteries 10000 Wehrle Dr. Clarence, NY 14031 Phone: [phone]

Elf Atochem 4 Cours Michelet Paris La Defense, 92091 France Phone: [phone]

Elgard Corporation-LIDA Products 1110 Industrial Blvd. Sugar Land, TX 77478 Phone: [phone]

Elite Buildings, Inc. 444 Charmony Frontage Rd. Sterling, CO 80751 Phone: [phone] [phone] Fax: [phone]

Eltron Chromalox 20-28 Whitehorse Rd. Croydon, Surrey CR9 2NA England Phone: [phone]

Empire Pipe and Supply Cd. P.O Box 101149 Birmingham, AL 35210 Phone: [phone] [phone] Fax: [phone]

Enduro Pipeline Services, Inc. 5000 S. 45th W. Ave. P.O. Box 3489 Tulsa, OK 74101 Phone: [phone]

Energy Coatings Company 7211 Regency Square Blvd., #104 Houston, TX 77036 Phone: [phone] Fax: [phone]

Energy & Economics Inc. 109 South St. SE Dodge Center, MN 55927 Phone: [phone]

Energy Efficiency Systems, Inc. 1300 Shames Dr. Westbury NY 11590 Phone: [phone] Fax: [phone]

Energy Structures, Inc. 10101 Chicksaw, Suite B Houston, TX 77041 Phone: [phone] Fax: [phone]

Enron Gas Service P.O. Box 1188 Houston, TX 77251-1188 Phone: [phone]

Entrepose - Montalev 15 Rue De Saint Denis La Courneuve, 93125 France Phone: [phone]

ENVIRONMENTAL CROSSINGS INC. (see our advertisement in this issue) 868 Robinwood Court Traverse City, MI 49684 Phone: [phone] Fax: [phone]

Environmental Group Inc. 12115 Wessex Houston, TX 77056 Phone: [phone] Fax: [phone]

Envirotech Controls, Inc. 22001 Northpark Dr. Kingwood, TX 77339 Phone: [phone]

Equimeter Inc. 805 Liberty Blvd. Dubois, PA 15801 Phone: [phone] Fax: [phone]

Ericsson GE Mobile Communications, Inc. Mountain View Road Lynchburg, VA 24502 one: (860) GE-12345

Ericsson Network Engineering AB Dialoggatan Stockholm, S-126 25 Sweden Phone: [phone]

Ervin Industries, Inc. 3893 Research Park Dr. Ann Arbor, MI 48106-1168 Phone: [phone] [phone] Fax: [phone]

European Gas Turbines Inc. 15950 Park Row Houston, TX 77084 Phone: [phone] Fax: [phone] Telex: 77 5607

Europipe GmbH Postfach, 4055 Ratingen, W-4030 Germany Phone: [phone]

Europlast Rohrwerk GmbH Bruchstrabe 1 Oberhausen, 46147 Germany Phone: [phone]

Evans Consoles, Inc. 2080 21st Street NE Calgary Alberta T2E 655 Canada Phone: [phone] Fax: [phone]

Exline, Inc. P.O. Box 1487 Salina, KS 67402-1487 Phone: [phone]

EXXON COMPANY, U.S.A (see our advertisement in this issue) P.O. Box 4803 Houston, TX 77210-4803 Phone: [phone] Fax: [phone] Sales mgr.: Mr. Len J. Badal Products: Estor Super Gas Engine Oils, Estor Ashless Gas Engine Oils; Estor GLX-C, Estor G-C and Estor G-4 Gas Engine Oils; Teresstic circulating oils, Exxon Turbo Oil 2380; Ronex MP & Ronex Extra Duty greases; Spartan EP & Spartan Synthetic EP gear oils, Nuto H hydraulic oils; Exxgard used Oil Analysis Program & Equip Trak Tracking Program

Fabricom SA 16 Industrieweg Grimbergen, B 1850 Belgium Phone: [phone]

Farwest Corrosion Control Co. 17311 S. Main St. Gardena, CA 90248 Phone: [phone] Fax: [phone]

FBD Technologies Inc. 10497 Town & Country Way Houston, TX 77024 Phone: [phone]

Fenwal Safety System 400 Main St. Ashland, MA 01721 Phone: [phone]

Fernsig Fahrenberg 6 Essen, 45257 Germany Phone: [phone]

Fernsprech: Und Signalbau GmbH P.O. Box 150253 D-4300 Essen 15, German Phone: [phone]

Ferranti International plc Concord Business Park, Wythenshawe Manchester, M22 5LA UK Phone: [phone] Fax: [phone]

Fisher Research Laboratory 200 W. Willmott Rd. Los Banos, CA 93635 Phone: [phone]

FISHER-ROSEMONT (see our advertisement in this issue) 205 S. Center St. Marshatltown, IA 50158 Phone: [phone]

Floatec Corporation 14019 D South Gessner Missouri City, TX 77459 Phone: [phone] Fax: [phone]

Flow Calibration Systems (FCS) Ltd. 31A The Avenue Cowley, Uxbridge, Middlesex UB8 2AD United Kingdom Phone: [phone]

Flow International Corporation 23500 64th Avenue South Kent, WA 98032 Phone: [phone] [phone] Fax: [phone]

Flow Systems, Inc. 220 Bunyan Ave. Berthoud, CO 80513 Phone: [phone]

Flow-Quip P.O. Box 2804 Tulsa, OK 74101 Phone: [phone]

Fluid Flow Consultants 8004 S. Juniper Ave. Broken Arrow, OK 74011 Phone: [phone] Fax: [phone]

Fluor Daniel Williams Brothers 1 Fluor Daniel Dr. Sugar Land, TX 77487 Phone: [phone]

Fluorocarbon 29982 Ivy Glenn Laguna Niguel, CA 92677 Phone: [phone]

Footage Tools 143 Fenmar Drive Weston, Ontario M9L 1M7 Canada Phone: [phone] Fax: [phone]

Ford New Holland Americas 500 Diller Ave. New Holland, PA 17557 Phone: [phone]

FORD, BACON & DAVIS SEALANTS, INC. (see our advertisement in this issue) P.O. Box 614 South Windsor, CT 06074

The Foster Agency P.O. Box 3246 Lafayette, LA Phone: [phone]

L.B. FOSTER CO. (see our advertisement in this issue) 415 Holiday Drive Pittsburgh; PA 15220 Phone: [phone] Fax: [phone] Sales mgr.: Richard Gilbert Phone: [phone] Products: Coated pipe, Fusion bond epoxy, steel water pipe, Coal tar, Gas transmission pipe, tape wrap

The Foxboro Co. (EMO) P.O. Box 500 E. Bridgewater, MA 02333 Phone: [phone]

FuelMaker Inc. 4745 Amelia Earhart Dr., Ste. 470 Salt Lake City, UT 84116 Phone: [phone]

FUTURA COATINGS, INC. (see our advertisement in this issue) 9200 Latty Ave. St. Louis, MO 63042 Phone: [phone] Fax: [phone] Sales mgr.: Frank Pearson Phone: [phone] Products: Futura-Thane 527, Futura-Thane 529, Ultra-Line 356M, Ultra-Line 358

G.A.L. Gage Co. P.O. Box 23,2953 Hinchman Rd. Stevensville, MI 49127 Phone: [phone]

Gabriel Electronics, Inc. P.O. Box 70 Scarborough ME 04070-0070 Phone: [phone]

Galvanic Analytical Systems Ltd. 5664 Burleigh Crescent SE Calgary, Alberta T2H 1Z8 Canada Phone: [phone]

Garneau Coating Systems 2003 5th Street Nisku, Alberta TOC 260 Canada Phone: [phone]

Gas Energy, Inc. 166 Montague St. Brooklyn, NY 11201 Phone: [phone]

Gas Tech, Inc. 8407 Central Avenue Newark, CA 94560 Phone: [phone]

Gas-Path Technology, Inc. 8301 West Monroe Houston, TX 77061 Phone: [phone] Fax: [phone]

GD Engineering Retford Road, Worksop Nottinghamshire, S80 2PY England Phone: [phone]

GE Industrial & Power Systems One River Rd. Schenectady, NY 12345

Gematech S.A.R.L. P.O. Box 48 Moirans, 384 France Phone: [phone] Fax: [phone]

GEMINI ENGINE COMPANY (see our advertisement in this issue) 200 N. Padre Island Dr. Corpus Christi, TX 78406 Phone: [phone]

General Corrosion Services Corporation 6036 Millstone Run Stone Mountain, GA 30087 Phone: [phone] Fax: [phone]

General Electric Co. Marine & Industrial 1 Neumann Way Cincinatti, OH 5215-6301 Phone: [phone]

General Electric Co. Mobile Radio Department Mt. View Rd Lynchburg, VA 24502

General Electric Co. Turbine Division One River Rd. Schenectady, NY 12345

General Turbine Systems, Inc. 14102 Chrisman Road Houston, TX 77039 Phone: [phone]

General Valve Co. 800 Koomey Road Brookshire, TX 77423 Phone: [phone]

Geneva Steel 10 S. Geneva Road Vineyard, UT 84058 Phone: [phone] Fax: [phone]

Geoplane Services Corporation 1811 Bering Drive, Suite 277 Houston, TX 77057 Phone: [phone] [phone] Fax: [phone]

GH-Bettis Actuators and Controls P.O. Box 508 Waller, TX 77484 Phone: [phone]

GH-Flow Automation 9303 Sam Houston Parkway Houston, TX 77099-5298 Phone: [phone] Fax: [phone]

Gilflo-Nice Metering 5000 Tilghman St. Allentown, PA 18104 Phone: [phone]

Girard Industries, Inc. 6631 North Eldridge Parkway Houston, TX 77041-3507 Phone: [phone] Fax: [phone]

GLAS MESH CO. (see our advertisement in this issue) P.O. Box 39 West Chester, PA 19381 Phone: [phone]

Global Thermoelectric Power Systems, Ltd. P.O. Box 400 Bassano, Alberta TOJ OBO Canada Phone: [phone]

Goldak/Udsec P.O. Box 1988 Glendale, CA 91209 Phone: [phone] Fax: [phone]

The German-Rupp Company 305 Bowman St.; P.O. Box 1217 Mansfield, OH 44903-1011 Phone: [phone]

GPM Gas Corporation 1300 Post Oak Blvd. # 800 Houston, TX 77056 Phone: [phone] Fax: [phone]

Grace Industries, Inc. P.O. Box 167 Transfer, PA 16154 Phone: [phone]

Greenline Products 1616 Commerce Drive Stow, OH 44224 Phone: [phone]

GREGG ENGINEERING CO. (see our advertisement in this issue) 523 N. Sam Houston Pkwy. E, # 550 Houston, TX 77260 Phone: [phone]

Griswold Machine & Engineering Inc. (GME) M-60 & Arbogast Rd. Union City, MI 49094 Phone: [phone] Fax: [phone]

Grove Valve & Regulator 6529 Hollis St. Oakland, CA 94526 Phone: [phone] Fax: [phone]

Guided Boring Systems 2916 West T.C. Jester Houston, TX 77018 Phone: [phone] Fax: [phone]

Gulf Interstate Engineering P.O. Box 56288 Houston, TX 77256-6288 Phone: [phone] Fax: [phone]

Gulf Petrochemical Service., Inc. P.O. Box 1633 Muttrah, Code 114 Sultanate of Oman Phone: 694485

Gulton-Statham Trasducers, Inc. 1644 Whittier Ave. Costa Mesa, CA 92627 Phone: [phone] Fax: [phone]

H&M Pipe Beveling Machine Co., Inc. 311 E. Third St. Tulsa, OK 74120 Phone: [phone]

Hall Signs, Inc. P.O. Box 515 Bloomington, IN 47402-0515 Phone: [phone]

The Hallen Construction Co., Inc. P.O. Box C, 4270 Austin Blvd. Island Park, NY 11558 Phone: [phone] Fax: [phone]

Halliburton Energy Services - Flow Measurement Sys P.O. Drawer 1431 Duncan, OK 73536-0602 Phone: [phone]

HAMILTON HEAVY EQUIPMENT (see our advertisement in this issue) 1807 Rankin Rd. Houston, TX 77073 Phone: [phone] Fax: [phone]

Hancor, Inc. P.O. Box 1047 Findlay, OH 45839-1047 Phone: (800)-2-HANCOR Fax: [phone]

HANDLEY INDUSTRIES, INC. (see our advertisement in this issue) 2101 Brooklyn Road Jackson, MI 49203 Phone: [phone]

Harben Inc. P.O. Box 830107 Cumming, GA 30130 Phone: [phone]

Harco Technologies Corp 1055 W. Smith Rd. Medina, OH 44256 Phone: [phone]

Harcro A Division of ARB, Inc. 215 N. Walnut Street Sapulpa, OK 74006 Phone: [phone]

Harris Corp. Farinon Division 1691 Bayport Ave. San Carlos, CA 94070 Phone: [phone] [phone] Harris RF Communications Division 1680 University Ave. Rochester, NY 14610 Phone: [phone] Fax: [phone]

E. Hawle & Co. Wagrainer Str. 13, P.O. Box 87 Vocklabruck, 4840 Austria Phone: [phone]

Hayward Industrial Products 900 Fairmount Ave. Elizabeth, NJ 07207 Phone: [phone]

H.D.I. Europe 1, Avenue Des Beguines 95801 Cergy, Pontoise B.P. 8241 France Phone: [phone] Fax: [phone]

HEATH CONSULTANTS INCORPORATED (see our advertisement in this issue) 9030 W. Monroe Rd. Houston, TX 77061 Phone: [phone] Fax: [phone] Sales mgr.: Robert Perry Parts mgr.: Daniel Perry Service mgr.: Beth Johnson Products: DP II and DP III Flame Ionization Detector; Porta-Fid II F. I. Unit, LS-Series Pipe & Cable Locators; Heath CGI Combustible Gas Indicator; Gasurveyor Products Branch offices: Norton, MA Belle Vernon, PA Nashville, TN Houston, TX W. Sacramento, CA New Castle, IN

Health Consultants Limited 2085 Piper Lane London, Ontario N5V 3S5 Canada Phone: [phone] Fax: [phone]

Hersey Measurement Co. 150 Venture Blvd. Spartanburg, SC 29305 Phone: [phone] Fax: [phone]

Hi Tec Cathodic Protection Limited 1 Heol Dowlais, Efail Isaf Mid Glamorgan, South Wales CF38 1BB UK Phone: [phone] Fax: [phone]

Hickham Industries 11518 Old La Porte Rd. LaPorte, TX 77571 Phone: [phone]

HMS CORPORATION (see our advertisement in this issue) 651 N. Shepherd, Suite 440 Houston, TX 77007 Phone: [phone] Sales mgr. R. W. Sandland

HOERBIGER CORPORATION OF AMERICA, INC. 1381 S. W. 30 Avenue Pompano Beach, FL 33069 Phone: [phone] Fax: [phone] Toll Free: [phone] Sales: mgr: Richard Lindenfleser Products: Compressor valves, compressor valve repair, check valves for air or gas, compressor unloading systems Branch offices: Houston, Odessa, Robstown, TX Santa Clarita, CA Carol Stream, IL Newcastle, DE Hoesch Rohr AG Kissinger Weg Hamm, D-4700 Germany Phone: [phone]

John Hoff Co., Inc. P.O. Box 470004 Tulsa, OK 74147 Phone: [phone]

CR Hogenboom & Zn's BV Postbox 5 Spijkenisse, 3200 AA The Netherlands Phone: [phone]

Hollico Services, Inc. P.O. Box 963222 Houston, TX 77213 Phone: [phone]

Horizontal Drilling International, Inc. 3430 Rogerdale Road Houston, TX 77042-5016 Phone: [phone] Fax: [phone]

Houston Atlas 22001 North Park Drive Kingwood, TX 77339 Phone: [phone] Fax: [phone]

J.M. Huber Corporation Flow Control Division 14011 Park Dr. Suite 201 Tomball, TX 77375 Phone: [phone] Fax: [phone]

Hughey & Phillips P.O. Box 2l67, 2162 Union Place Simi Valley, CA 93862 Phone: [phone]

Husky Computers, Inc. 18167 US Hwy. 19 N., Suite 285 Clearwater, FL 34624 Phone: [phone]

HUTTON COMMUNICATIONS, INC. (see our advertisement in this issue) 4112 Billy Mitchell Drive Dallas, TX 75244-7315 Phone: [phone] Fax: [phone] Solar Sales mgr.: Tom Gentry Phone: [phone], ext. 175 Products: Distributor of solar power systems, communications antennas; and cable, accessories, and test equipment Branch offices: Denver, CO Atlanta, GA Houston, TX

Hycon Corporation 2260 City Line Road Bethlehem, PA 18017 Phone: [phone] Fax: [phone]

Hyde Consultants, Inc. 41O6 Sherwood Lane Houston, TX 77092 Phone: [phone]

Hydra-Stop, Inc. 12601 S. Homan Ave. Blue Island, IL 60561 Phone: [phone] (800) 538-STOP Fax: [phone]

Hydro Soil Services N.V. Haven 1025, Scheldedijk 30 Zwijndrecht, 2070 Belgium Phone: [phone] Fax: [phone]

Hydro Tech Systems, Inc. 11500 Northwest Frwy. Suite 620 Houston, TX 77092 Phone: [phone]

I.T.I. Anti-Corrosion Inc. 10175 Harwin # 110 Houston, TX 77036 Phone: [phone]

Illinois Industrial Equipment Co. 16450 South 104th Avenue Orland Park, IL 60462 Phone: [phone]

IMO Industries Inc. IMO Pump Division P.O. Box 5020, Airport Rd. Monroe, NC 28111-5020 Phone: [phone] Fax: [phone]

In Situ Pipeline Systems Inc. P.O. Box 674 Mansfield, TX 76063 Phone: [phone] Fax: [phone]

Independent Project Consultancy Holland Bezuidenhoutseweg 123 Den Haag, 2594 AE Netherlands Phone: [phone]

INDUTECH CANADA LIMITED (see our advertisement in this issue) 5210-54 Ave. SE Calgary, Alberta T2C 2V8 Canada Phone: [phone]

Ingersoll-Rand Compression Services 20602 E. 81st St. Broken Arrow, OK 74014

INIVEN Division of CONOLOG Corp. 5 Columbia Road Somerville, NJ 08876 Phone: [phone]

INNER-TITE CORPORATION (see our advertisement in this issue) Industrial Drive Holden, MA 01520 Phone: [phone] Fax: [phone]

Insituform IGL, Commercial Arcade St. Peter Port Guernsey, Channel Islands United Kingdom Phone: [phone]

Insituform MidAmerica 17988 Edison Avenue Chesterfield, MO 63005 Phone: [phone] Fax: [phone]

Insituform Technologies, Inc. 1770 Kirby Pkwy., Ste. 30 Memphis, TN 38138 Phone: [phone]

Instromet Technology Corporation 400 N. Lexington Ave. Pittsburgh, PA 15208 Phone: [phone]

Intergraph Corporation Huntsville, AL 35894-0001 Phone: [phone]

INTERNATIONAL BORING, INC. (see our advertisement in this issue) P.O. Box 85 Wichita Falls, TX 76307 Phone: [phone] Fax: [phone]

International Corrosion Control Inc. P.O. Box 441 Lewiston, NY 14092 Phone: [phone] Fax: [phone]

International Gas Measurement Ltd. 7 The Courtyard, Furlong Rd. Bourne End, Bucks SL8 4AU England Phone: [phone]

International Piping Services Co. (IPSCO) 2900 S. 21st Ave. Broadview, IL 60153 Phone: [phone]

Interprovincial Corrosion Control Co. Ltd. 930 Sheldon Court Burlington, Ontario L7L 5K6 Phone: [phone] Fax: [phone]

Invalco 401 S. Adams St. Hutchinson, KS 67501 Phone: [phone]

Ipsco Steel Inc. P.O. Box 180 Camanche, IA 52730 Phone: [phone] Fax: [phone]

Iseki, Inc. 4365 Executive Drive, Suite 360 San Diego, CA 92122 Phone: [phone] Fax: [phone]

ISL North America 1101 Butterworth Court Stevensville, MD 21666 Phone: [phone]

ITAG Itagstrasse 5-17 Celle, 29221 Germany Phone: [phone]

Italsider S.p.A. Via Corsica, 4 Genova, Italy

ITC Procurement B.V. P.O. Box 53 Rheden, 6990 AB Netherlands Phone: [phone] Fax: [phone] Telex: 45721

ITN Corp. 7887 Katy Freeway #200 Houston, TX 77024 Phone: [phone] Fax: [phone]

ITT BARTON 900 S. Turnbull Canyon Rd. City of Industry, CA 91745 Phone: [phone]

ITW Devcon Engineered Coatings 30 Endicott St. Danvers, MA 01923 Phone: [phone]

ITW PHILADELPHIA RESINS (see our advertisement in this issue) P.O. Box 309 Montgomeryville, PA 18936 Phone: [phone]

IWL Communications, Inc. 4311 FM 2351 Friendswood, TX 77346 Phone: [phone] Fax: [phone]

J and N Enterprises Inc. P.O. Box 183 Wheeler, IN 46393 Phone: [phone] Fax: [phone]

Mylon C. Jacobs Supply Co. 2701 N. Hemlock Ct. Broken Arrow, OK 74012 Phone: [phone]

JCB Inc. 10939 Philadelphia Road Box 209 White Marsh, MD 21162 Phone: [phone] Fax: [phone]

JDR Enterprise Inc. 725 Branch Dr. Alpharetta, GA 30201 Phone: [phone]

JGC Corporation New Ohtemachi Bldg., 2-1, Ohtemach i 2-chome Chiyoda-ku, Tokyo 100 Japan Phone: [phone] Fax: [phone]

Johnson Company, E.F. 438 Gateway Blvd. Burnsville, MN 55337-2564 Phone: [phone]

Johnson Matthey Inc. Environmental Products 460 East Swedesford Road Wayne, PA 19087 Phone: [phone] Fax: [phone]

Jomar International 31831 Sherman Dr. Madison Heights, MI 48071 Phone: [phone]

Joy Pipe Inc. P.O. Box 1710 Uvalde, TX 78802 Phone: [phone] Fax: [phone]

Kawasaki Steel Corp' 2-2-3, Uchisaiwaicho Chivoda-ku Tokyo 100, Japan

Kaydon Ring & Seal, Inc. P.O. Box 626 Baltimore, MD 21203-0626 Phone: [phone] Fax: [phone]

Kaye Instruments, Inc. 15 DeAngelo Dr. Bedford, MA 01730 Phone: [phone]

Keane Controls Corp. 1600 Orange Thorpe Way Anaheim, CA 92801 Phone: [phone] Fax: [phone]

Kenonic Controls Ltd. 7175 - 12 Street S.E. Calgary, Alberta T2H 2S6 Canada Phone: [phone]

KEROTEST MFG. CORP. (see our advertisement in this issue) 2525 Liberty Ave. Pittsburgh, PA, 15222 Phone: [phone] Fax: [phone] Telex: 442-3022

B.L. KEY, INC. (see our advertisement in this issue) P.O. Box 471138 Tulsa, OK 74147 Phone: [phone] Fax: [phone]

KF Industries inc. P.O. Box 95249 Oklahoma City, OK 73143 Phone: [phone] Fax: [phone]

KIDD PIPELINE & SPECIALTIES, INC. (see our advertisement in this issue) 14826 Yarberry Houston, TX 77039 Phone: [phone] Products: Sphere and pig passage indicators, polyurethane scraper p5, and other related products

KIEFER INDUSTRIAL (see our avertisement in this issue) Box 32, Highway 30 West Ames, IA 50010 Phone: [phone] Fax: [phone] Products: specialized trailers for coiled pipe, ;tick pipe, gas odorizing tanks

Kiene Diesel Accessories, Inc. 325 S. Fairbanks Addison, IL 60101 Phone: [phone]

Kim Hotstart Manufacturing CO. P.O. Box 42 Spokane, WA 99210-0042 Phone: [phone]

KIRK ENGINEERING CO. INC. 202 C Street N. Oneonta, AL 35121 Phone: [phone] Fax: [phone]

Kirk Patrick & O'Donnell P.O. Box 150907 Irving, TX 75015-0907 Phone: [phone]

Kitz Corporation of America 6100 West by Northwest Houston, TX 77040 Phone: [phone]

Knapp Polly-Pig, Inc. 1209 Hardy Street Houston, TX 77020 Phone: [phone] Fax: [phone]

KNI INCORPORATED P.O. Box 58 Homer City, PA 15748 Phone: [phone] Fax: [phone]

Komax Systems, Inc. P.O. Box 1323 Wilmington, CA 90748-1323 Phone: [phone] Fax: [phone]

Gerhard Kopp GmbH Fr. Ebertstr 131 50 Lingen, Germany Phone: [phone] Fax: [phone]

KRAUS ALTERNATE FUELS INC. (see our advertisement in this issue) 204 Day St. Winnipeg, Manitoba B2C 1A8 Canada Phone: [phone]

Krautkramer Branson 50 Industrial Park Lewiston, PA 17044 Phone: [phone]

Kundel Industries, Inc. 292 Forest Warren, OH 44482 Phone: [phone]

Kuwait Metal Pipe industries K.S.C. P.O. Box 3416 13035 Safat, Kuwait Phone: [phone]

KWH Pipe (Canada) Ltd 6539A Mississauga Rd. Mississauga, Ontario L5N 1A6 Canada Phone: [phone]

L. H. Pipe Line Construction Company Inc. Rt. 2, Box 76, Millbranch Rd. Belpre, OH 45714 Phone: [phone] Fax: [phone]

LABARGE PIPE & STEEL CO. (see our advertisement in this issue) 901 N. Tenth St. St. Louis, MO 63101 Phone: [phone] Fax: [phone] Products: pipe

Laidlaw Environmental Services, Inc 220 Outlet Pointe Blvd. Columbia, SC 29210 Phone: [phone]

Peter Lancier GmbH & Co. KG Petersheide 37 Munster, NRW D-48167 Germany Phone: [phone]

LANEY DIRECTIONAL DRILLING (see our advertisement, this issue) P.O. Box 1449 Humble, TX 77347 Phone: [phone] Fax: [phone]

Lanstar Coatings Ltd. Church Road Liverpool, Merseyside L21 8NX UK Phone: [phone]

LAVALCO/Louisiana Valve Co. 2300 Grimmet Drive Shreveport, LA 71107 Phone: [phone]

Leeds & Northrup P.O. Box 2000 North Wales, PA 19454 phone: [phone] Fax: [phone]

Lenox Instrument Co., Inc. 165 Andrews Rd. Trevose, PA 19053 Phone: [phone]

Liberty Valve Services Lodge Road, P.O. Box 2067 New Caney, TX 77357 Phone: [phone]

LIFTEX SOUTHWEST, INC. (see our advertisement this issue) P.O. Box 55381 Houston, TX 77255 Phone: [phone] Fax: [phone] Sales mgr.: Sylvan Rubin Products: Lowering-in belts, choker slings, choker belts, tiedowns, round slings

Lightning Master Corp. P.O. Box 6017 Clearwater, FL 34618-6017 Phone: [phone]

Limitorque Corp. 5114 Woodall Rd. Lychnburg, VA 24502 Phone: [phone]

The Lincoln Electric Company, 22801 St. Clair Ave. Cleveland, OH 44117 Phone: [phone] Fax: [phone]

Long Products Ltd. Harbour Rd. Rye East Sussex TN31 7TE United Kingdom Phone: [phone]

Lorain Products 1422 F St. Lorain, OH 44052 Phone: [phone]

Loxell Corp. P.O. Box 158 Worcester, MA 01613 Phone: [phone]

LS Industries 710 E. 17th Wichita, KS 67214 Phone: [phone]

R.W. Lyall & Company, Inc. 2665 Research Dr. Corona, CA 91718-2259 Phone: [phone]

Machida, Inc. 40 Ramland Rd. Orangeburg, NY 10962 Phone: [phone] [phone]

Macola, Inc. 333 East Center St. Marion, OH 43302 Phone: [phone] Fax: [phone]

Madewell Products Corporation P.O. Box 902 Roswell, GA 30077 Phone: [phone] Fax: [phone]

Madison Chemical Industries 40 McGeachie Dr. Milton, Ontario L9T 3Y5 Canada Phone: [phone]

Maintenance Metals & Supply, Inc. 255 North Wayside Drive Houston, TX 77020 Phone: [phone] Fax: [phone]

Mako Compressors, inc. 1634 SW 17 St. Ocala, FL 34473 Phone: [phone]

F.H. MALONEY CO. (see our advertisement in this issue) 2301 Texas Ave. Houston, TX 77003 Phone: [phone] Fax: [phone]

Mangutehoftnungshuette AG Bahnhofstrasse 66 Oberhausen, 46145 Germany Phone: [phone]

MANNESMANN ANLAGENBAU AG Theodorstr. 90 Dusseldorf, 40472 Germany Phone: [phone]

Mannesmannrohren-Werke AG Wiesenstrabe 36 Mulheim an der Ruhr, D-45473 Germany Phone: [phone] Fax: [phone] Telex: 8 56 851

Marcum Fuel Systems, Inc. 702 W. 48th Ave., Suite A Denver, CO 8021 Phone: [phone] Fax: [phone]

Mark Tool Co., Inc. 10,502 Hwy. 182 Garden City, LA 70540 Phone: [phone] Fax: [phone]

Markham and Associates P.O. Box 1714 Spring, TX 77383-1714 Phone: [phone]

J. Mastenbroek & Co., Ltd. 83 Swineshead Rd., Wyberton Fen Boston, Lincolnshire PE21 7JG England Phone: [phone]

Master Bond Inc. 154 Hobart St. Hackensack, NJ 07601 Phone: [phone]

Master Builders Technologies, Inc. 23700 Chagrin Blvd. Cleveland, OH 44122-5554 Phone: [phone]

Matcor, Inc. P.O. Box 687 Doylestown, PA 18901 Phone: [phone] Fax: [phone]

Mathey/Leland International, Ltd. P.O. Box 472110 Tulsa, OK 74147-2110 Phone: [phone] Fax: [phone]

Maverick Tube Corp. 400 Chesterfield Center, 2nd Fl. Chesterfield, MO 63017 Phone: [phone]

MAYNARD PLASTICS (see our advertisement in this issue) 96 Swampscott Rd. Salem, MA 01970 Phone: [phone] [phone] Fax: [phone]

Alfred McAlpine Services & Pipelines Limited Cambridge Rd., Ellesmere Port South Wirral, Cheshire L65 5BT UK Phone: [phone]

McCrometer Division, Ketema, Inc. 3255 W. Stetson Ave. Hemet, CA 42545 Phone: [phone] Fax: (909) 6?,2-3078

A.Y. McDonald Manufacturing Co. P.O. Box 508 Dubuque, IA 52004-0508 Phone: [phone] FAX: [phone]

McElroy Manufacturing, Inc. P.O. Box 580550 Tulsa, OK 74158-0550 Phone: [phone]

McLaughlin Manufacturing Co. 2006 Perimeter Road Greenville, SC 29605 Phone: [phone] [phone]

Norton McMurray Manufacturing Company P.O. Box 588 Geneva, IL 60134 Phone: [phone]

McNeil International 7041 Hodgson Rd. Mentor, OH 44060 Phone: (800) MCNEILL

M.E.A., Inc. 2600 American Ln. Elk Grove Village, IL 60007 Phone: [phone]

MEARS ENGINEERING/MEARS CPG (see our advertisement in this issue) 4500 N. Mission Rd. Rosebush, MI 48878 Phone: [phone]

Mechanical Specialties Inc. P.O. Box 51022 New Berlin, WI 53151 Phone: [phone]

Meeco, Inc. 250 Titus Ave. Warrington, PA 18976-2426 Phone: [phone]

Melfred Borzall Inc. 12115 Shoemaker Ave. Santa Fe Springs, CA 90670 Phone: [phone]

Mentor Engineering, Inc. #503, 609 - 14th Street N.W. Calgary, Alberta T2N 2A1 Canada Phone: [phone] Fax: [phone]

Mercury Instruments Inc. 3940 Virginia Ave. Cincinnati, OH 45227 Phone: [phone]

Merwede Valves & Fittings P.O. Box 5 Hardinxveld-Giessendam, 3370 AA The Netherlands Phone: [phone]

MESA CORROSION CONTROL, INC. (see our advertisement in this issue) P.O. Box 52608 Tulsa, OK 74152 Phone: [phone] Metal Samples Co., Inc. P.O. Box 8, Metal Samples Rd. Munford, AL 36268 Phone: [phone]

Metals For Industry Inc. 1116 E. Memphis Broken Arrow, OK 74012 Phone: [phone]

Metcal, Inc. 1530 O'Brien Dr. Menlo Park, CA 94025 Phone: [phone] Fax: [phone]

Metretek Incorporated 4450 Enterprise Court Melbourne, FL 32934 Phone: [phone] [phone]

Metric/PMI P.O. Box 9555 Tulsa, OK 74157 Phone: [phone]

Metricom, Inc. 980 University Avenue Los Gatos, CA 95030 Phone: [phone]

Metrosonics, Inc. P.O. Box 23075 Rochester, NY 14692 Phone: [phone] Fax: (716) 3@34-2635

Metrotech, Corporation 670 National Ave. Mountain View, CA 94043 Phone: [phone]

Metrotech Limited Whitechapel Road Cleckheaton, West Yorkshire BD19 3UF England Phone: [phone]

Metscan, Inc. 1450 Rochester St. Lima, NY 14485 Phone: [phone]

Michels Pipeline Construction, Inc. P.O. Box 128 Brownsville, MN 53006 Phone: [phone]

Michigan Trenching Service, Inc. 4033 E. Morgan Rd., P.O. Box 970200 Ypsilanti, MI 48197 Phone: [phone] Fax: [phone]

Microflect 3575 25th Street SE Salem, OR 97302-1190 Phone: [phone] Fax: [phone]

MICROWAVE DATA SYSTEMS 175 Science Parkway Rochester, NY 14620-4261 Phone: [phone] MDS supplies "Point to Point" and "Multiple Address" radio systems for fixed location communications. Radios are supplied world wide, operating from 390 to 470 MHz and 850 to 960 MHz. Point to Point radios provide

from 1 to 15 data/voice channels using analog radios or 56 to 384 kbps data with digital radios. Multiple Address radios communicate from a central master station to remote radios located within a 30 mile radius. Repeaters are available to extend radius. Spread Spectrum 900 MHz radios meet FCC Part 15 rules to provide unlicensed "point to point" and "multiple address" communications. MDS Services include RF engineering, path studies, licensing, training, on-site installation and testing

Microwave Tower Service, Inc. 1930 Lewis St. S.E. Salem, OR 97302 Phone: [phone]

Midwest Pipeline Supply, Inc. 483 S. Kirkwood Rd. Suite 205 St. Louis, MO 63122 Phone: [phone] [phone] Fax: [phone]

Midwestern Mfg. Co. P.O. Box 3445 Tulsa, OK 74101 Phone: [phone]

MIE (Monitoring Instruments for the Environment) 1 Federal Street Suite 2 Billerica, MA 01821-3500 Phone: [phone]

Miille Applied Research Co., Inc. 1730 S. Ritchey Pasadena, TX 77502 Phone: [phone] Fax: [phone]

Miller Electric Mfg. Co. P.O. Box 1079 Appleton, WI 54912 Phone: [phone]

Miller Pipeline Corp. P.O. Box 34141 Indianapolis, IN 46234 Phone: [phone]

Miller The Driller 5125 E. University Des Moines, IA 50317 Phone: [phone] Fax: [phone]

Mobil Natural Gas Inc. 12450 Greenspoint Dr. Houston, TX Y7060 Phone: [phone]

Mobil Oil Corp. 3225 Gallows Rd. Fairfax, VA 52031 Phone: [phone]

MOBILE INTERNATIONAL (see our advertisement in this issue) P.O. Box 470485 Tulsa, OK 74147-0485 Phone: [phone]

Modern Engineering Company, Inc. P.O. Box 127 Gallman, MI, 39077 Phone: 800?325-8178

MODERN SUPPLY CO., INC. (see our advertisement in this issue) 1202 W. Summit Ponca City, OK 74602 Phone: [phone] Fax: [phone]

Monitek Technologies Inc. 1495 Zephyr Ave. Hayward, CA 94544 Phone: [phone]

Montauk Services, Inc. 849 Johnson Ave. Hackensack, NJ 07601 Phone: (800) 6j2-8893

MOODY-TOTTRUP INTERNATIONAL INC. (see our advertisement in this issue) 650 N. Sam Houston Pkwy. East Suite 228 Houston, TX 77060 Phone: [phone] Fax: [phone] Robert R. Wright President Robert T. McNutt. VP/Controller Todd Fleckenstien, VP-Quality Assurance D. Kemper, mgr.-Tubular/Coat. Insp. T. Trott, mgr.-Equip. Insp./Expediting Branch Offices: Abu Dhabi, Austria, Australia, Brazil, Canada, China, France, Germany, Holland, India, Italy, Japan, Korea, Malaysia, Norway, Singapore, Spain, Sweden, United Kingdom Services: Worldwide-inspection and ex editing of pipe, valves, fittings, coatings, pressure vessels, Pumps, turbines, motor, generators, transformers, electrical controls: welding and materials consulting services, procurement, cargo loading inspection, construction inspection, vendor surveys training and liquid cargo inspection Quality system registration to ISO 9000 standards through the AOQC division, an NACCB accredited Registrar.

MOONEY CONTROLS (see our advertisement in this issue) 40 W. Gregson Ave. Salt Lake City, UT 84115 Phone: [phone] Fax: [phone]

Morton Powder Coatings P.O. Box 1-5240 Reading, PA 19612 Phone: [phone]

Motorola Communications & Electronics, Inc. 1301 E. Algonquin Rd. Schaumburg, IL 60196

MPC International, Inc. 1155 Dairy Ashford Suite 703 Houston, TX 77079 Phone: [phone] Fax: [phone]

MQS Inspection, Inc. 2301 Arthur Ave, Elk Grove Village, IL 60007 Phone: [phone]

MSA P.O. Box 426 Pittsburgh, PA 15230 Phone: (800) MSA-2222 Fax: [phone]

MTI Analytical Instruments 41762 Christy St. Fremont, CA 94538 Phone: [phone] Fax: [phone]

Mueller Co., A Grinnell Company P.O. Box 671 Decatur, IL 62523 Phone: [phone]

Mueller Pipeliners Inc. P.O. Box 325 New Berlin, WI 33151-0325 Phone: [phone] Fax: [phone]

Mueller Steam Specialty P.O. Box 1569 Lumberton, NC 28359-1569 Phone: [phone]

Multi-Fluid, Inc. 400 Corporate Circle, Suite C Denver, CO Phone: [phone] Fax: [phone]

MURPHY BROTHERS/RIVER CROSSINGS (see our advertisement in this issue) 3150 5th Ave. East Moline, IL 61244 Phone: [phone]

Frank Murphy Manufacturer P.O. Box 470248 Tulsa, OK 74147 Phone: [phone]

MUSTANG ENGINEERING INC. (see our advertisement in this issue) 16001 Park Ten Place, Suite 500 Houston, TX 77084 Phone: [phone] Fax: [phone]

MVE Cryogenics Two Appletree Square Bloomington, MN 55425-1636 Phone: [phone]

Myoco Pipeline Supply P.O. Box 35137 Houston, TX 77235 Phone: [phone]

N.V. Denys Industrieweg 124 Wondelgem/Gent Oost-Vlaanderen 9032 Belgium Phone: [phone]

Nalco Chemical Co. P.O. Box 87 Sugar Land, TX 77487-0087 Phone: [phone]

NAO, INC. (see our advertisement in this issue) 1284 East Sedgley Ave. Philadelphia, PA 19134 Phone: [phone] Fax: [phone]

Naptech Inc. 85f S. Freeport Industrial Parkway Clearfield, UT 84015 Phone: [phone] Fax: [phone]

National Control Systems; Inc. 10654 E. Chinook Trail Parker, CO 80134 Phone: [phone] Fax: [phone]

National Energy Service Company 18 Harrison, P.O. Box 31 Zanesville, OH 43702-0031 Phone: [phone] Fax: [phone]

National Meter P.O. Box 908 Lancaster, OH 43130 Phone: [phone]

NATURAL GAS CLEARING HOUSE (see our advertisement in this issue) P.O. Box 4777 Houston, TX 77210 Phone: [phone]

Natural Gas Odorizing, Inc. P.O. Box 1429 Baytown, TX 77522 Phone: [phone]

NATURAL GAS PRODUCTS COMPANY (see our advertisement in this issue) P.O. Box 809,3970 Washington Rd. McMurray, PA 19317 Phone: [phone] Fax: [phone] Products: Gas distribution valve products, Ballomax all welded steel ball valves 2" - 12",' Friatec all polyethylene ball valves 2" - 8", Tectrol all cast steel N.R.S. gate valves 2" - 8" Representatives/distributon:

Western Region: Allied Pipeline Products Co. Livermore, CA [phone] Mid-Continent Region: Groebner & Associates Inc. Minneapolis, MN [phone] Southwest Region: Secor Inc. Houston, TX [phone] Southern Region: M. T. Deason Co., Inc. Birmingham, AL [phone] Northeastern Region: Energy Products Company Pittsburgh, PA [phone] Eastern Region: Power & Process Inc. Kinsington, CT [phone]

Nautilus Engineering & Construction 12012 Wickchester, Suite 475 Houston, TX 77079 Phone: [phone]

NDT Systems, Inc. 15751 Graham St. Huntington Reach, CA 92649 Phone: [phone] Fax: [phone]

NELES-JAMESBURY 640 Lincoln St. Worcester, MA 1615-0004 Phone: [phone] Fax: [phone] Sales mgr.: Illka Jallinoia Service mgr.: John Bass Products: Ball valves, butterfly valves, control valves, valve operators/actuators and Noise Control Valves Branch offices: Atlanta, GA Houston, TX Baton Rouge, LA Vancouver, WA Shrewsbury, MA Newport Steel Corp. Ninth & Lowell Sts. Newport, KY 41072 Phone: [phone]

Nicolon Corporation 3500 Parkway Ln. Suite 500 Norcross, GA 30092 Phone: [phone]

NJEX International 206 Lubbock Hwy. Snyder, TX 79549 Phone: [phone] Fax: [phone]

NKF Kabel B.V. P.O. Box 85 2740 AB Waddinxveen, The Netherlands Phone: [phone] Fax: [phone]

Noise Control Technology Corp. 2861 South Beltline Road Dallas, TX 75253-4608 Phone: [phone] Fax: [phone]

Nokia Telecommunications P.O. Box 12 Espoo, 02611 Finland Phone: [phone]

Nordstrom Valves, Inc. 1511 Jefferson St. Sulphur Springs, TX 75482 Phone: [phone] Fax: [phone]

Norman Offshore Pipelines Inc. 325 Industrial Pkwy. Lafayette, LA 70505 Phone: [phone] Northern Pipeline Construction Co. 1 W. Deer Valley Rd. # 101 Phoenix, AZ 85027 Phone: [phone] Fax: [phone]

Northern Power Systems P.O. Box 659. Moretown, VT 05660 Phone: [phone]

Norton McMurray Manufacturing Company P.O. Box 588 Geneva, IL 60134 Phone: [phone] Fax: [phone]

Norwalk Co. 20 N. Water St. Norwalk, CT 06854 Phone: [phone]

NOVA-NET COMMUNICATIONS, INC. (see our advertisement in this issue) 58 Inverness Drive East Englewood, CO 80112 Phone: [phone]

NOVATA DEVELOPMENT SERVICES (see our advertisement in this issue) 3378 MacIntyre Drive Murrysville; PA 15668-1314 Phone: [phone]

Nowsco Pipeline Surveys & Services 304, 3016 - 5th Ave. NE Calgary Alberta T2A 6K4 Canada Phone: [phone] Fax: [phone]

Nowsco U.K. Limited Badentoy Ave., Badentoy Park Indus Estate Portlethen, Aberdeen AB1 4YB Scotland Phone: [phone]

NPK Construction Equipment 7550 Independence Dr. Walton Hills, OH 44146

Nuovo Pignone Via F. Matteucci, 2 Florence, 50127 Italy Phone: [phone]

NuPipe, Inc. A Subsidiary of Insituform of North America, Inc. 3315 Democrat Road Memphis, TN 38118 Phone: [phone]

Nupro Company, A Swagelok Co. 4800 345th Street Willoughby, OH 44094 Phone: [phone]

OCECO Inc. 1616 S. Cty Rd. 1, Box 159 Tiffin, OH 44883 Phone: [phone]

Ohio Pipe & Steel Corp. P.O. Box 091213 Columbus, OH 43201 Phone: [phone]

The Ohmart Corp. 4241 Allendorf Cincinnati, OH 45209 Phone: [phone]

Oil & Gas Specialties Company 11321 Todd Street, P.O Box 55306 Houston, TX 77055 Phone: [phone]

Olympus Fiberoptics Div. 4 Nevada Dr. Lake Success, NY 11042 Phone: [phone]

Omni Flow Computers, Inc. 10701 Corporate

Stafford, TX 77477 Phone: [phone]

ON & OFFSHORE QUALITY CONTROL SPECIALISTS, INC. (see our advertisement in this issue) 3809 S. First St. Austin, TX 78704 Phone: [phone] Fax: [phone] Telex: 495-5562 Sales mgr.: Eddie H. Hooks, Jr. Phone: [phone] Night: [phone] Products: Inspection and management services

OPC Engineering Inc. 12777 Jones Road #407 Houston, TX 77070 Phone: [phone]

Orbit Valve Co. P.O. Box 193520 Little Rock, AR 72219 Phone: [phone]

ORMAT INC. (see our advertisement in this issue) 980 Greg St. S arks, NV 89431-6039 Phone: [phone] Fax: [phone] Sales mgr.: Don Schochet Products: Ormat Energy Converters, Gas Turbines, Turbo-expanders

Osha-Soft, Inc. P.O. Box 668 Amherst, NH 03031 Phone: [phone]

Pall Metalworking Filter Division 2200 Northern Blvd. East Hills, NY 11548 Phone: [phone]

Palmer Instruments, Inc. 234 Weaverville Hwy Asheville, NC 28804 Phone: [phone]

Pan-Alberta Gas Ltd. 500, 707-8th Ave. S.W. Calgary, Alberta T2P 3V3 Canada Phone: [phone]

Panametrics, Inc. 221 Crescent St. Waltham, MA 02154 Phone: [phone] Fax: [phone]

Paragon Environmental Systems 1145-G Industrial Ave. Escondido, CA 92029 Phone: [phone]

Paralogix Corporation 5795 Widewaters Pkwy. Syracuse, NY 13214 Phone: [phone] Fax: [phone]

Paratech, Incorporated P.O. Box 1000, 1025 Lambrecht Rd. Frankfort, IL 60423-7000 Phone: [phone]

Parker Hannifin Seal Group 18321 Jamboree Rd. Irvine, CA 92715 Phone: [phone] Fax: [phone]

Parkline, Inc. P.O. Box 65 Winfield, WV 25213 Phone: [phone] Fax: [phone]

PARKLINE/ARROW (see our advertisement in this issue) P.O. Box 1260 Bristow, OK 74010 Phone: [phone] Fax: [phone]

Toll Free: [phone] Sales mgr.: James Brazeal or Rich Kerby Service mgr.: Jerry Davidson Products: Measurement and control buildings, meter tubes, hazardous material storage buildings/system

PBV - USA, INC. see our advertisement in this issue) 11629-B N. Houston Rosslyn Rd. Houston, TX 77086 Phone: [phone]

PCA Engineering, Inc. 177 Royal Avenue P.O. Box 227 Hawthorne, NJ 07507-0227 Phone: [phone]

P Solar Ltd. Credsec House, Oxford Rd., Stone Aylesbury, Bucks HP17 8PL England Phone: [phone] Fax: [phone] Telex: 838867 BPSOL G

E. Peart & Co. Ltd Dunkirk Lane Hyde, Cheshire SK14 4PN England Phone: [phone]

Peek Measurement 10335 Landsbury #300 Houston, TX 77099-3407 Phone: [phone] Fax: [phone]

Pentzien, Inc. 6969 Grover St. Omaha, NE 68106 Phone: [phone] Fax: [phone]

Perar Ball Valves 12613 Executive Dr. Suite 712 Stafford, TX 77477 Phone: [phone]

PERFECTION CORPORATION (see our advertisement in this issue) 222 Lake St. Madison, OH 44057 Phone: [phone] National Sales mgr.: Joseph C. Passerell Products: Risers, gas service/meter, plastic pipe; fittings, valves; meter sets, prefabricated; fabrication; fittings, pipe; fittings, pipe repair; valves, plug; training/consulting services, valves, ball; valves, plastic Branch: 6764 Preston Ave. Livermore, CA 94550

Perry Equipment Corporation P.O. Box 640 Mineral Wells, TX 76068 Phone: [phone]

Petersen Underground Equipment, Inc. 6419 S. Cottonwood Street Murray UT 84107 Phone: [phone] Fax: [phone]

Petroconsultants SA 8-10 rue Musy CH-1211-Geneva -6, Switzerland

Petrogas Gas System BV 2803 PL Doesburgweg 7 Gouda, Holland Phone: [phone]

Petrology Ltd. 8, Miller St. Clydebank, Dunbartonshire G81 1 VQ Scotland Phone: [phone]

Phillips Driscopipe, Inc. 2929 N. Central Expressway Richardson, TX 75080 Phone: [phone] Fax: [phone]

Phoceenne De Metallurgie BP.61 13742 Vitrolles Cedex, France Phone: [phone] Fax: [phone] Telex: 420.255F

PHOTOCOMM,INC. (see our advertisement in this issue) 13130 Stafford Rd. Stafford, TX 77477 Phone: [phone] Fax: [phone]

Pickard Tate and Allen One Warren Place 6100 S. Yale, Suite 400 Tulsa, OK 74136 Phone: [phone]

Pigging Products and Services Association IV The Mews, Cricklade Street Cirencester, Glos GL7 1HY England Phone: [phone]

PIM Corporation 201 Circle Drive N. Suite 106 Piscataway, NJ 08854 Phone: [phone]

PINKSTAFF CONSULTING ASSOCIATES (see our advertisement in this issue) 5800 E. Skelly Dr., Suite 1230 Tulsa, OK 74135 Phone: [phone] Fax: [phone]

S.G. Pinney & Associates, Inc. P.O. Box 9220 Port St. Lucie, FL 34985-9220 Phone: [phone] Fax: [phone]

Pipe Protection International Smit-Iso Maintenances B.V. P.O. Box 23219 Rotterdam, 3001KE The Netherlands Phone: [phone]

Pipe Rehab International 7431 Hoyle Ave. Dallas, TX 75227 Phone: [phone]

Pipeline Dehydrators Inc. P.O. Box 8898 Houston, TX 77249-8898 Phone: [phone]

THE PIPELINE DEVELOPMENT COMPANY (PLIDCO) (see our advertisement in this issue) 870 Canterbury Rd. Cleveland, OH 44145-1419 Phone: [phone] Fax: [phone] Telex: 980 670 Sales mgr.; R.J. Kujanek Phone: [phone] Products: Plidco Weld+Ends, Split+ Sleeves, Flanges, Flange+Repair Rings, Hot Tapping+Saddle, Split+ RepairElls, Split+RepairTees

Pipeline Engineering GmbH Kallenbergstrasse 5 Essen, 4300 Germany Telex: 857250-0 ple d

Pipeline Engineering Catterick Bridge Ind. Est., Brompt on on Swale Richmond, North Yorkshire DL10 7JG England Phone: [phone]

Pipeline Induction Heat, Ltd. Fleming Way, Coronation Road Cressex Industrial Estate High Wycombe, Bucks HP12 3TS United Kingdom Phone: [phone]

Pipeline Inspection Co. 1919 Antoine Houston, TX 77055 Phone: [phone] Fax: [phone]

Pipeline Pigging Products Inc. P.O. Box 692005-300 Houston, TX 77269 Phone: [phone]

PIPELINE SKID SERVICE (see our advertisment in this issue) P.O. Box 864 Chanute, KS 66720 Phone: [phone]

Pipeline Systems Incorporated 460 N. Wiget Ln. Walnut Creek, CA 94598 Phone: [phone]

Pipetronix, Inc. 2207 Oil Center Ct. Houston, TX 77073 Phone: [phone]

Piute Contractors 2486 Commerce Blvd. Grand Junction, CO 81505 Phone: [phone]

Plainsman Manufacturing Ltd. 5928 - 99 St. Edmonton, Alberta T6E 3N9 Canada Phone: [phone]

Plant Systems, Inc. 7993 Lewis Rd. Berea, OH 44017 Phone: [phone]

Plasson Maagen Michael D.N. Menasche, 37805 Israel Phone: [phone]

Plastics Pipe Institute Plaza II, 155 Rt. 46 W. Wayne, NJ 07470 Phone: [phone] Fax: [phone]

THE PLATT BROTHERS & CO. (see our advertisement in this issue) 2670 South Main St., P.O. Box 1030 Waterbury, CT 06721-1030 Phone: [phone] Sales mgr.: John J. Koenig Phone: [phone] Products: Plattline zinc ribbon anodes

PLCS Inc. 102 Gaither Dr. Mount Laurel, NJ 08054 Phone: [phone] Fax: [phone]

PLEXCO see our advertisement in this issue) 1050 Busse Hwy., Rm. 200

Bensenville, IL 60106 Phone: [phone] Fax: [phone] Products: PLEXGUARD coating, polyethylene and polypropylene coating for steel pipe protection. Polyethylene pipe and fittings 1/2-inch through 122-inch Plants: Franklin Park, IL Colton, CA Knoxville, TN Abbeville, SC Corsicana, TX Reno, NV Waxachachie, TX

PLS International P.O. Box 35168 Cleveland, OH 44135 Phone: (800) PLS PIPE

Poly Pipe Industries P.O. Box 390 Gainesville, TX 76241-0390 Phone: [phone]

Polyguard Products, Inc. P.O. Box 755 Ennis, TX 75120 Phone: [phone]

Polyken Technologies Pipeline Coating Division 15 Hampshire Street Mansfield, MA 02048 Phone: [phone]

Porter International 400 S. 13th St. Louisville, KY 40203 Phone: [phone]

Pow-R Devices, Inc. 5940 Goodrick Rd. Clarence Center, NY 14032 Phone: [phone]

Power Conversion Products Inc. P.O. Box 380 Crystal Lake, IL 60039-0380 Phone: [phone] Fax: [phone]

Power House Tool Canada A Div. of Acu Mech Sys 121 Harper Ave. Winnepeg, Manitoba R2J 1K4 Canada Phone: [phone] Fax: [phone]

Poweram, Inc. 150 N. 18th St. P.O. Box 153 Barron, WI 54812 Phone: [phone]

Premier Coatings Limited Headcorn Rd. Smarden, Ashford, Kent TN27 8PJ England Phone: [phone]

H.C. Price Pipeline Construction 5353 Alpha Rd. #200 Dallas, TX 75240 Phone: [phone] Fax: [phone]

Prime Actuator Control Systems One Houston Center Suite 1118 Houston, TX 77010 Phone: [phone]

Prime Communications 5751 Chatterfield Dr. Dublin, OH 43017 Phone: [phone]

Progressive Metals 19814 GH Circle Waller, TX 77484 Phone: [phone]

Proline Pipe Equipment Inc. 6120 Davies Road Edmonton, Alberta T6E 4M9 Canada Phone: [phone] Fax: [phone]

Protecto Wrap Co. 2255 S. Delaware St. Denver, CO 80223 Phone: [phone]

PSG Corrosion Engineering, Inc. 1605 Mutual Bldg. 28 W. Adams Detroit, MI 48226 Phone: [phone]

PSL Pipe Coaters Ltd. B-96, Greater Kailash - 1 New Delhi, 110048 India Phone: [phone] Fax: [phone] Telex: 70124 PUNJIN

Q-TEK, INC. (see our advertisement in this issue) 500 Main Street, Box 500 Glenwillard, PA 15046 Phone: [phone] Fax: [phone]

QUAIL PIPE CORPORATION (see our advertisement in this issue) P.O. Box 9 Magnolia, AR 71753 Phone: [phone]

Quante Uellendahler Str. 353 D-5600 Wuppental 1, Germany

R & S Renewable Energy Systems B.V. P.O. Box 3049 Helmond, 5700 JC The Netherlands Phone: [phone]

RACO Manufacturing & Engineering Co. 1400 62nd St. Emeryville, CA 94608 Phone: [phone]

RADIATION SYSTEMS, INC., MARK ANTENNAS DIVISION (see our advertisement in this issue) 1757 S. Winthrop Drive Des Plaines, IL 60018 Phone: [phone] Fax: [phone] Sales mgr.: Al Crego Products: Microwave - cellular antennas

RADIODETECTION CORPORATION (see our advertisement in this issue) 35 Whitney Rd. Mahwah, NJ 07430 Phone: [phone]

Radix Corporation 4855 Wiley Post Way Salt Lake City, UT 84116 Phone: [phone]

Ranger Directional, Inc. 205 Glaser Lafayette, LA 70508 Phone: [phone]

Raychem Corp. 410 S. Trade Center Parkway #SA-1 Conroe, TX 77385 Phone: [phone] Fax: [phone]

Reading Body Works, Inc. P.O. Box 650 Reading, PA 19607 Phone: [phone] Fax: [phone]

Recon PVF Inc. 901B Waddington Dr. Vernon, BC V1T 9E2 Canada Phone: [phone] Fax: [phone]

Reed Manufacturing Company 1425 West 8th St. Erie, PA 16512-1321 Phone: [phone] [phone]

Reef Industries (see Terra Tape)

Reilly Industries, Inc. 1500 S. Tibbs Ave. Indianapolis, IN 46241 Phone: [phone] Fax: [phone]

Remote Control Inc P.O. Box 275 North Kingstown, RI 02852 Phone: [phone]

Reynolds Equipment Company 410 Kirby St. Garland, TX 75042 Phone: [phone]

Reynolds Metals Co. P.O. Box 27003 Richmond, VA 23261 Phone: [phone]

Ricwil Piping Systems Limited Partnership 10100 Brecksville Rd. Brecksville, OH 44141 Phone: [phone]

Ridge Tool Co. 400 Clark St. Elyria, OH 44035

WM. L. RIGGS CO., INC. (see our advertisement in this issue) 600 S. 129th East Ave. Tulsa, OK 74108 Phone: [phone] Fax: [phone]

RING-0 VALVE, INC. (see our advertisement in this issue) 510 Industrial Blvd. Sugar Land, TX 77478 Phone: [phone] Fax: [phone]

Ritchie Bros. Auctioneers Int'l. 821 Weld County Rd. 27 Brighton, CO 80601 Phone: [phone] Fax: [phone]

Rohrback Cosasco Systems 11841 E. Smith Ave. Santa Fe Springs, CA 90670 Phone: [phone]

Rolls-Royce Industrial and Marine Gas Turbines Ltd Ansty, Coventry CV7 9JR England Phone: [phone]

Rontgen Technische Dienst bv Delftweg 144, P.O. Box 10065 Rotterdam, 3004 AB Netherlands Phone: [phone]

ROONEY ENGINEERING, INC. (see our advertisement in this issue) 12201 E. Arapahoe Rd Englewood, CO 80112 Phone: [phone]

H. Rosen Engineering GmbH Industrie Park Sued Am Seitenkanal 8 49811 Lingen/Ems, German Phone: [phone]

Ross-Hill Controls Corp. 1530 West Belt Dr. North Houston, TX 77043 Phone: [phone]

Rotork Controls, Inc. 19 Jet View Dr. Rochester, NY 14624 Phone: [phone] Fax: [phone]

Royston Labs, Inc. 128 First St. Pittsburgh, PA 15238 Phone: [phone]

RTware, Inc. 714 Ninth St., Suite 206 Durham, NC 27705 Phone: [phone]

RUFFNECK HEATERS (see our advertisement in this issue) 2827-18th St. NE Calgary, Alberta T2E 7K5 Canada Phone: [phone]

RUPTURE PIN TECHNOLOGY (see our advertisement in this issue) 8320 SW 8th Street Oklahoma City, OK 73128 Phone: [phone]

Ruston Gas Turbines, Inc. P.O. Box 219129 Houston, TX 77218 Phone: [phone]

Rustproof Signs Division P.O. Box 16141 Houston, TX 77222-6141 Phone: [phone] Fax: [phone]

RYCOM INSTRUMENTS INC. (see our advertisement in this issue) 9351 E. 59th St. Baytown, MO 64133 Phone: [phone]

SABRE INTERNATIONAL INC. (see our advertisement in this issue) 4259 S. 76th East Ave. Tulsa, OK 74145 Phone: [phone] Fax: [phone]

Safe-T-shore 3102 S. Roosevelt Tempe, AZ 85282 Phone: [phone]

Safety Corporation of America 1005 International Drive Oakdale, PA 15071 Phone: [phone] Fax: [phone]

Sahara NGV 101 W. Center St. Sandwich, IL 60548-1585 Phone: [phone]

Sawtec 11 High St. Suffield, CT 06078 Phone: [phone]

SAWYER MFG. COMPANY (see our advertisement in this issue) 1031 N. Columbia Place Tulsa, OK 74110 Phone: [phone]-2496 Fax: [phone]

Scala Electronic Corp. P.O. Box 4580 Medford, OR 97501 Phone: [phone]

SCHLUMBERGER TECHNOLOGIES 829 Middlesex Turnpike Billenca, MA 01821 Phone: [phone] Fax: [phone] Sales mgr.: Andrew J. Stagnari Phone: [phone] Parts mgr.: Frank Clayton

Phone: [phone] Products: Corrosion monitoring systems, materials test systems, electrochemical analysis products

SCI Systems, Inc. P.O. Box 1000 - 13000 Memorial Pkwy. Huntsville, AL 35807 Phone: [phone] Fax: [phone]

Science Applications International Corp. (SAIC) 6725 Odyssey Dr. Huntsville, AL 35806-3301 Phone: [phone]

SCIENTIFIC SYSTEMS CORPORATION (see our advertisement in this issue) 9020 S. Choctaw Dr. Baton Rouge, LA 70815 Phone: [phone]

Sealweld Corp. 7240 Brittmoore, Suite 120 Houston, TX 77041 Phone: [phone]

SEARCH TECHNOLOGIES, INC. P.O. Box 710423 Houston, TX 77271 Phone: [phone] Fax: [phone] Sales mgr.: Carter F. Beasley Phone: (night) [phone] Parts mgr.: Rachel Leal Products: Cleaning pigs, traps, pipe, fittings, flanges, pig locators, pipe and cable locators, leak detectors

Sensidyne, Inc. 16333 Bay Vista Dr. Clearwater, FL 34620 Phone: [phone] [phone] Fax: [phone]

Sensotec, Inc. 1200 Chesapeake Ave. Columbus, OH 43212 Phone: [phone]

Sentex Systems Inc. 553 Broad Avenue RidgefieId, NJ 07657 Phone: [phone]

Serck Audco Valves 2301 Texas Avenue Houston, TX 77003 Phone: [phone] Fax: [phone]

Sermatech International 155 South Limerick Road Limerick, PA 19468 Phone: [phone]

Servicised Ltd. Ajax Ave. Slough, Berkshire SL1 6BH England Phone: [phone]

Servo Delden B.V. P.O. 1 Delden, 7490 AA The Netherlands Phone: [phone]

Seton Name Plate Co. P.O. Box 1331 New Haven, CT 06505 Phone: [phone]

James W. Sewall Company 147 Center Street Old Town, ME 04468 Phone: [phone] [phone]

Shafer Valve Company 2500 Park Avenue West Mansfield, OH 44906 Phone: [phone] Fax: [phone]

Sharewell, Inc. 13393 Murphy Road Stafford, TX 77477 Phone: [phone] Fax: [phone]

Shaw Pipe, Inc. 2408 Timberloch Place, #C-8 The Woodlands, TX 77380-1038 Phone: [phone]

SHEEHAN PIPE LINE CONSTRUCTION CO. (see our advertisement in this issue) 1924 S. Utica Tulsa, OK 74104 Phone: [phone]

Shieldco Trench Safety Systems 7002 Easthaven Houston, TX 77017 Phone: [phone] Fax: [phone]

Siemens Industrial Automation, Inc. 100 Technology Drive Alpharetta, GA 30202 Phone: [phone]

Siemens Solar Industries 4640 Adohr Lane Camarillo, CA 93011 Phone: [phone] Fax: [phone]

Sierra Monitor Corp. 1991 Tarob Ct. Milpitas, CA 95035 Phone: [phone]

Skibeck Pipeline Company, Inc. P.O. Box 37 Randolph, NY 14772 Phone: [phone] Fax: [phone]

Smith and Denison 3561 Arden Road Hayward, CA 94645 Phone: [phone]

Smith Meter Inc. 1602 Wagner Ave. Erie, PA 16514-0428 Phone: [phone]

SNAMPROGETTI (see our advertisement in this issue) Viale de Gasperi 16 San Donato Milanese, 20097 Italy

Snyder General Corporation/American Air Filter 215 Central Ave. Louisville, KY 40232 Phone: [phone]

Socotherm S.R.L. Via Risorgimento 62 Adria, 45011 (RO) Italy Phone: [phone]

Solar Turbines, Inc. P.O. Box 85376 San Diego, CA 92138-5376 Phone: [phone]

Solartron Instruments 11321 Richmond Ave. Suite 4402 Houston, TX 77082 Phone: [phone]

Solomat-Neotronics 26 Pearl St. Norwalk, CT 06850 Phone: [phone]

Solutions Consulting Services P.O. Box 1114

Randolph, MA 02368 Phone: [phone]

Sonceboz Corporation 210 Newtown Rd. Plainview, NY 11803 Phone: [phone]

Southern Cathodic Protection Company Center 1, Suite 108, 1100 Johnson Ferry Rd. Atlanta, GA 30342 Phone: [phone]

SOUTHERN CROSS CORPORATION (see our advertisement in this issue) P.O. Box 2168 Norcross, GA 30091-2168 Phone: [phone] Fax: [phone] Sales & Service mgr.:James W. Nance Products: Flame ionization leak detectors, portable and mobile; pipe and cable locators, combustible gas indicators; Ametek valve boxes; Plug-R bar hole plugs; fiberglass reinforced plastic (FRP) shields; leak see; CO, toxic & hazardous gas detectors; RMI valves; M-Packt-O probe bars; power purgers; leak detection seminars

Southern Iowa Manufacturing Co. (SIMCO) 802 Furnas Dr. Osceola, IA 50213 Phone: [phone] Fax: [phone]

SOUTHWEST PHOTOVOLTAIC (PV) SYSTEMS, INC. (see our advertisement in this issue) 212 E. Main Tomball, TX 77375 Phone: [phone] Fax: [phone] Sales mgr.: Marshall Blalock Phone: [phone] Products: Solar electric modules, regulators mounting hardware, inverters, batteries, complete packaged solar electric systems

SPAC BP 217 Clichy Cedex, 92112 France Phone: [phone]

Specialty Pipeline Inspection & Eng. P.O. Box 690409 Houston, TX 77269-0409 Phone: [phone] Fax: [phone]

Spectra-Physics Laserplane, Inc. 5475 Kellenburger Rd. Dayton, OH 45424 Phone: [phone] Fax: [phone]

SPEEDSHORE CORPORATION (see our advertisement in this issue) P.O. Box 262591 Houston, TX 77207 Phone: [phone] [phone] Gen. mgr.: Tom Mercer Mktg. mgr.: Rod Lanning Products: Steel and aluminum trench shields boxes); alumnium hydraulic shoring systems; manguards; shoring shields, manhole braces, water systems; vertical shores; OSHA compliant safety eminars, safety engineenng services Branches: distributors and worldwide

Spie-Capag Pole Edisen 2, Parc St. Christophe

Cergy-Pontoise Cedex, 95861 France Phone: [phone] Fax: [phone]

Sprung Instant Structures Inc. 3101 Richmond Avenue, #215 Houston, TX 77098-3013 Phone: [phone]

Stahl, A Scott Fetzer Co. 3201 W. Lincoln Way Wooster, OH 44691 Phone: [phone]

Standard Buildings P.O. Box 10 Splendora, TX 77372 Phone: [phone]

Standard Communications Corp P.O. Box 92151 Los Angeles, CA 90009-2151 Phone: [phone]

Staveley Sensors Inc. 91 Prestige Park Circle East Hartford, CT 06108 Phone: [phone]

STEEL FORGINGS, INC. (see our advertisement in this issue) 1810 Barton Dr. Shreveport, LA 71107 Phone: [phone] Fax: [phone] Sales mgr.: Kyle Sawyer Phone: [phone] Night: [phone] Products: Pipe fittings, pipe repair fittings, hot tapping pipe, steel pipe

Stelpipe - A Unit of Stelco Inc. P.O. Box 1010 Welland, Ontario L3B 5Y6

Canada Phone: (905) 735-PIPE

Straightline Manufacturing 1450 S. Spencer Newton, KS 67114 Phone: [phone]

W.C. Striegel, Inc. P.O. Box 860 Rangeley, CO 81648 Phone:[phone]

Stuart Steel Protection Corp. P.O. Box 476, South Bound Brook, NJ 08880 Phone: [phone] Fax: [phone]

STUPP CORPORATION (see our advertisement in this issue) P.O. Box 3558 Baton Rouge, LA 70821 Phone: [phone] Fax: [phone] Wats: [phone] VP Sales: Donnell L. Efferson Dist. sales mgr.. Wallace G. Pursell Sales mgr.: Don Bohach Sales admin: Ray E. Young Sales: Lee R. Everett Tom A. Biggs Products: Plain end API line pipe, 8 5/8" to 24" high frequency electric resistance weld, regular and lightweight. One pipe mill, lining, coating and wrapping facilities Branch offices: 2100 West Loop South, Suite 800 Houston, TX 77027 Dist. sales mgr.: Dee G. Jones Sales: J. Randy Barton 13614 Midway Rd., Suite 102 Dallas, TX 75244-4303 Dist. sales mgr.: Bill R. Blount

STV Group 11 Robinson St. Pottstown, PA 19464-0459 Phone: [phone]

Sulzer Bingham Pumps Inc. 2800 NW Front Ave. Portland, OR 97210 Phone: [phone]

Summit Environmental Industries, Inc. 1200 Everman Parkway P.O. Box 40366 Fort Worth, TX 76140 Phone: [phone]

S.U.N. Engineering Inc. 10031 E. 52nd Street Tulsa, OK 74146 Phone: [phone] Fax: [phone]

Superior Signal Company, Inc. P.O. Box 96 Spotswood, NJ 08884 Phone: [phone] Fax: [phone]

Supports Systems Intl. Corp. 150 South Second St. Richmond, CA 94804 Phone: [phone] Fax: [phone]

Surface to Surface Directional Drilling Systems P.O. Box 322 Essex, Ontario N8M 2X6 Canada Phone: [phone]

The Swagelok Companies 31400 Aurora Road Solon, OH 44139 Phone: [phone]

William H. Swain Co. 239 Field End Street Sarasota, FL 34240 Phone: [phone]

SWITZER PRODUCTS CORPORATION (see our advertisement in this issue) 5700 Walnut St. Richmond, IL 60071 Phone: [phone] Fax: [phone] Sales mgr.: Edward W. Luecht, Vice President Parts & Service mgr.: Tracy Switzer Products: Fiberglass composite buildings/enclosures, cabinets, tanks, post markers, safety equipment

TALON TAPES (see our advertisement in this issue) 7210-51 Ave. Edmonton, Alberta T6B 2P4 Canada Phone: [phone] Fax: [phone] Products: Tapes, rock shield, primers, moulding putty

Tank Services Co. Water St. Ext. Bolivar, OH 44612 Phone: [phone]

TANO Corp. 4301 Poche Court West New Orleans, LA 70129 Phone: [phone]

THE TAPECOAT CO. (see our advertisement in this issue) 1527 Lyons St. Evanston, IL 60201 Phone: [phone] Fax: [phone]

Telex: 265541 TCMF UR Sales mgr.: A.J. Maki Phone: [phone] Products: Protective coatings

Teadit, Inc. 558 Garden Oaks Blvd. Houston, TX 77018 Phone: [phone]

TECH SERVICES INTL. (see our advertisement in this issue) 200 Lake Ave. Saratoga Springs, NY 12866 Phone: [phone]

Techstaff, Inc. 811 Dallas, #707 Houston, TX 77002 Phone: [phone] Fax: [phone]

TELEDYNE BROWN ENGINEERING ENERGY SYSTEMS (see our advertisement in this issue) 10707 Gilroy Rd. Hunt Valley, MD 21031-1311 Phone: [phone] Fax: [phone]

Teledyne Energy Systems 10707 Gilroy Rd. Hunt Valley, MD 21031 Phone: [phone] Fax: [phone]

Teledyne Geotech P.O. 8ox 469007 Garland, TX 75046-9007 Phone: [phone]

Telesciences Transmission Systems 171 No. Covington Dr. Bloomingdale, IL 60108 Phone: [phone]

Tenax 1800 E. Monument St. Baltimore, MD 21205 Phone: [phone] Fax: [phone]

Terra Tape, Reef Industries, Inc. P.O. Box 750245 Houston, TX 77275-0245 Phone: [phone] Fax: [phone]

Tesmec USA, Inc. 103 Sentry Dr. N. Mansfield, TX 76063 Phone: [phone] Fax: [phone] Tessco 34 Loveton Circle, P.O. Box 5100 Sparks, MD 21152 Phone: [phone]

Tex-Tube Division Armco Inc. P.O. Box 7705 Houston, TX 77270-7705 Phone: [phone]

Texaco Gas Marketing P.O. Box 4700 Houston, TX 77210 Phone: [phone]

Texas Instruments Process Automation Systems Division P.O. Box 242 Hunt Valley, MD 21030 Phone: [phone] Fax: [phone]

Texas Resins Corporation P.O. Box 796247 Dallas, TX 75379 Phone: [phone]

Texcentric/Cooper Industries P.O. Box 14618 Houston, TX 77220 Phone: [phone]

Thermo Bond Buildings Int'l. Inc. 108 E. Main St.

Elk Point, SD Phone: [phone] Fax: [phone]

T.I.B. Chemie GmbH Mulheimer Str. 16-22 P.O. Box 810569 6800 Mannheim 81, Germany Phone: [phone] Tinker & Rasor 417 Agostino Road San Gabriel, CA 91778 Phone: [phone]

Titeflex Corporation 603 Hendee St. Springfield, MA 01139 Phone: [phone]

TK Valve & Manufacturing Inc. One Houston Center, Suite 1118 Houston, TX 77010-2068 Phone: [phone]

Tobin Surveys, Inc. 114 Camp Street San Antonio, TX 78204-1500 Phone: [phone]

TOTAL ENERGY CORP. (see our advertisement in this issue) 711 Westchester Ave. White Plains, NY 10604 Phone: [phone] Fax: [phone]

Tramac Corporation 7 Emery Avenue Randolph, NJ 07869 Phone: [phone]

Transcat 10 Vantage Point Dr. Rochester, NY 14624 Phone: [phone]

Transgas, Inc. 87 Industrial Ave. Lowell, MA 01852-5193 Phone: [phone] Fax: [phone]

Trench Shoring Co. 636 East Rosecrans Blvd. Los Angeles, CA 90059 Phone: [phone]

Trencor Jetco 3545 E. Main St. Grand Prairie, TX 75050 Phone: [phone]

Trenton Corporation 7700 Jackson Road Ann Arbor, MI 48103 Phone: [phone]

Trigon Engineering, Inc. 1099 18th St., Suite 1700 Denver, CO 80202-1917 Phone: [phone] Fax: [phone]

Truflo Valves Limited Westwood Road Birmingham, West Midlands B6 7JF England Phone: [phone]

TT Technologies, Inc. 1771 Mallette Road Aurora, IL 60505-9924 Phone: [phone] [phone] Fax: [phone]

Tubacero International Corp. 4828 Loop Central Dr. Suite 670

Houston, TX 77081 Phone: [phone] Fax: [phone]

Tube Turns Technologies, Inc. 2900 West Broadway Louisville, KY 40211 Phone: [phone] Fax: [phone] Telex: 204112

Tubesa, S.A. De C.V. Culiacan 123-707 DF, 06170 Mexico Phone: [phone]

Tuboscope Pipeline Services P.O. Box 808 Houston, TX 77001 Phone: [phone]

Tuff-N-Nuff Industries Ltd. 311-9300 Parksville Dr. Richmond, British Columbia V7E4W3 Canada Phone: [phone]

Tulsa Turbocharger Overhaul Facility 4405 South 74 East Ave. Tulsa, OK 74145 Phone; [phone] Fax: [phone]

Turbine Specialties, Inc. 1908 West Old Hwy. 40 P.O. Box 680 Salina, KS 67402-0680 Phone: [phone] Fax: [phone]

Turn Test, Inc. 10775 Kempwood Suite 1

Houston, TX 77043 Phone: [phone] Fax: [phone]

TWR Communications, Inc. 1630 Elmview Houston, TX 77080 Phone: [phone]

TWR Telecom Inc. 1630 Elmview Houston, TX 77080 Phone: [phone]

U.S. Steel Corporation 600 Grant St. Pittsburgh, PA 15230 Ucar Carbon Company, Inc. Old Ridgebury Road Danbury, CT 06817 Phone: [phone]

U.E. Systems, Inc. 14 Hayes St. Elmsford, NY 10523 Phone: [phone] Fax: [phone]

UMAC INC. (see our advertisement in this issue) 120 S. Ship Rd. Exton, PA 19341 Phone: [phone] Fax: [phone] Products: Automatic excess flow valves, Raychem Corp. - shrink sleeves, Bryan Donkin Co. - regulators and valves

Underground Services, Inc. SoftDIG P.O. Box 39 West Chester, PA 19380 Phone: [phone]

Underground Technologies, Inc. 3800 Byron Highway P.O. Box 160 Byron, CA 94514 Phone: [phone] Fax: [phone]

Union Carbide Co Chemicals and Plastics Co. 39 Old Ridgebury Rd. Danbury, CT 06817-0001 Phone: [phone]

United Controls Corporation P.O. Box 4620 Huntsville, AL 35815 Phone: [phone]

UNITED PIPELINE SYSTEM (see our advertisement in this issue) 135 Turner Dr. Durango, CO 81301 Phone: [phone] Fax: [phone]

United Solar Systems Corp. 5278 Eastgate Mall San Diego, CA 92121-2814 Phone: [phone] [phone]

Universal Ensco, Inc. 1811 Bering Dr., Suite 400 Houston, TX 77057 Phone: [phone] Fax: [phone]

UNIVERSAL FIELD SERVICES, INC. (see our advertisement in this issue) P.O. Box 35666 Tulsa, OK 74153-0666 Phone; [phone] [phone] Fax: [phone]

Uponor Aldyl Company 57 Read's Way New, Castle, DE 19720 Phone: [phone] [phone] Fax: [phone]

UPSCO, Inc. 22-24 Central St., Box 431 Moravia, NY 13118 Phone: [phone]

Utilitronics Corp. 33 Wales Avenue Avon, MA 02322 Phone: [phone]

Utility Boring Inc. 14364 Santa Ana Avenue Fontana, CA Phone: [phone]

Utility Products Co. RR-4 Box 165A Bernville & Sheidy Rd. Bernville, PA 19506 Phone: [phone] [phone] Fax: [phone]

Utility Service Supply, Inc. P.O. Box 498 Townsend, MA 01469 Phone: [phone]

Utility Structures Inc. P.O. box 1630 Brookfield, WI 53008-1630 Phone: [phone] [phone] Fax: [phone]

UTILX Corporation P.O. Box 97009 22404 66th Ave. S.

Kent, WA 98032-4801 Phone: [phone]

UTSI Incorporated 1560 W. Bay Area Alvd. Friendswood, TX 77546 Phone: [phone] Fax: [phone]

Valmet Automation # 1,6325 - 12th St. S.E. Calgary Alberta T2H 2K1 Canada Phone: [phone] Fax: [phone]

Valmont Industries, Inc. P.O. Box 358 Valley, NE 68064-0358 Phone: [phone] , ext. 3825

Valspar Inc. 645 Coronation Dr. West Hill, Ontario L6Z 1N9 Canada Phone: [phone]

Valve Industries, Inc. 10775 Kempwood, Suite 1 Houston, TX 77043 Phone: [phone]

Valve Sales Company, Inc. 8820 Meldrum Lane Houston, TX 77074-2296 Phone: [phone] Fax: [phone]

VALVE SYSTEMS & CONTROLS (see our advertisement in this issue) 5150 Blalock Houston, TX 77070 Phone: [phone]

Valves Unlimited 3572 East TC Jester Blvd. Houston, TX 77018 Phone: [phone]

Van Leeuwen Buizen Lindtsedjik 100 Zwijndredht, 3336 LE The Netherlands Phone: [phone]

Varian Associates, Inc. 317 Brokaw Road Santa Clara, CA 95050

Veeder-Root Company 125 Powder Forest Dr. Simsbury, CT 06070-2003 Phone: [phone]

Velan Valve Corporation 18 Ave. C, Griswold Ind. Park Williston, VT 05495-9798 Phone: [phone]

Vermeer Manufacturing Co. P.O. Box 200 Pella, IA 50219-0200 Phone: [phone]

Vetco Pipeline Services, Inc. 1600 Brittmoore Rd. Houston, TX 77043 Phone: [phone] Fax: [phone]

Virtual Pipeline Systems P.O. Box 802099 Houston, TX 77280 Phone: [phone] Fax: [phone]

Visitec U.S.A. 1374 E. Boot Rd. West Chester, PA 19380-5958 Phone: [phone] Fax: [phone]

Visser & Smit Hanab P.O. Box 305 3350 AH Papendrecht The Netherlands Phone: [phone] Fax: [phone]

VITEC, INC. 23600 Mercantile Road, 9-1 Cleveland, OH 44122 Phone: [phone] [phone] Fax: [phone] Toll Free: [phone] Products: Designs, develops and manufactures a wide range of protective, predictive and productive maintenance products for a wide variety of industrial applications. Wide line of standard and custom-made vibration sensors, transmitters, detectors, switches, alarms, meters, monitors, instruments, data collectors, dynamic balancers, continuous monitoring systems and related software, including training and customer service. Branch Office: Vitec, Inc. 345 Doucet Street, Suite 239 Lafayette, LA 70503 Ph.: [phone] Fax: [phone] Vitrex S.p.A. Viale Delle Industrie, 81 Cambiago (MI), 1-20040 Italy

VULCAN SIGNS (see our advertisement in this issue) 408 E. Berry Ave. Foley, AL 36535-0850 Phone: [phone]

Wailes Dove Bitumastic plc. Hebburn, Tyne & Wear NE31 1EY England Phone: [phone]

The Walworth Company 10190 Harwin Drive Houston, TX 77036 Phone: [phone] Fax: [phone]

Wandel & Goltermann 2200 Gateway Blvd. Morrisville, NC27560 Phone: [phone]

WASK-RMF Woodhouse Road Keighley, West Yorkshire BD21 5NA England Phone: [phone] Fax: [phone]

Watson-Marlow Inc. 220 Ballardvale St. Wilmington, MA 01887 Phone: [phone]

Watts Regulator Co 815 Chestnut St. North Andover, MA 01845-6098 Phone: [phone]

Waugh Controls Corp. 9001 Fullbright Ave. Chatsworth, CA 91311 Phone: [phone]

Waukesha Engine Division Dresser Industries, Inc. 1000 W. St. Paul Ave. Waukesha, WI 53188-4999 Phone: [phone] Fax: [phone]

Wayne Manufacturing, Inc. 7901 N. Kickapoo Shawnee, OK 74801 Phone: [phone] Fax: [phone]

Weamco, Inc. P.O. Box 9555 Tulsa, OK 74157 Phone: [phone] Fax: [phone]

Welker Engineering Company P.O. Box 18 Sugar Land, TX 77487-0138 Phone: [phone]

West Chester Chemical Co. 439 S. Bolmar St. West Chester, PA 19380 Phone: [phone]

Western Gas Marketing Ltd. P.O. Box 500, Station M Calgary, Alberta T2P 3V6 Canada Phone: [phone] Fax: [phone]

Western Multiplex 300 Harbor Blvd. Belmont, CA 94002 Phone: [phone] Fax: [phone]

Westinghouse Electric Corp. P.O. Box 1488 Annapolis, MD 21404 Phone: [phone]

Roy F. Weston., Inc. 1 Weston Way West Chester, PA 19380 Phone: [phone]

Tom Wheatley Valve Co. P.O. Box 920935 Houston, TX 77292-0835 Phone: [phone]

Wheeler Mfg. Div. Rex Intl. USA Inc. 3744 Jefferson Rd. Ashtabula, OH 44004 Phone: [phone] Fax: [phone]

Whitey Co. A Swagelok Co. 31 8 Bishop Road Highland Heights, OH 44143 Phone: [phone]

Wholesale Alloy Distribution Co. 13126 Mula Court Stafford, TX 77477 Phone: [phone]

Wilco Marsh Buggies P.O. Box 710 Marrero, LA 70073 Phone: [phone]

Wilcrest/Belmont 2400 W. Loop S. Houston, TX 77027 Phone: [phone]

Wild Heerbugg, Ltd. 9535 Heerbugg Heerbugg, Switzerland Phone: [phone]

Wilkerson Instrument Co. Inc. 2915 Parkway St. Lakeland, FL: 33811 Phone: [phone]

WILLBROS USA, INC. (see our advertisement this issue) 2431 E. 61st St.,,Suite 700 Tulsa, OK 74136 Phone: [phone] Fax: [phone]

Williams Energy Ventures P.O. Box 70 Tulsa, OK 74101 Phone: [phone]

Williams Instrument Company Inc. 25217 Rye Canyon Road Valencia, CA 91355 Phone: [phone] Fax: [phone]

Williams Knowledge Systems P.O. Box 3448 Tulsa, OK 74101 Phone: [phone]

Williamson Corporation 70 Domino Dr. Concord, MA 01742 Phone: [phone]

T.D. WILLIAMSON, INC. (see our advertisement in this issue) P.O. Box 2299 Tulsa, OK 74101 Phone: [phone] Fax: [phone] Telex: 158126 Nat'l sales mgr.: M. Cowlishaw Nat'l serv. mgr.: G. Bishop Products: Tapping machines, plugging machines, fittings, pipeline casing seals and insulators, pipeline pigs and spheres; complete pigging system consisting of launchers and receivers, closures, handling equipment, skids, pig passage indicators, launch pins, valves and piping; polyethylene pipe plugging, fusion and fusion inspection equipments. Services include hot tapping and plugging services, and internal pipe inspection service for locating recording changes in pipeline diameter, and corrosion surveys Service centers: LaPorte, TX Concord, CA Signal Hill, CA Baton Rouge, LA Newark, DE Perry, FL South Bend, IN Tulsa, OK

Willowglen Systems Ltd. #4 Manning Close NE Calgary, Alberta T2E 7N5 Canada Phone: [phone]

Wilson Valve Systems P.O. Box 1492 Houston, TX 77251 Phone: [phone] Fax: [phone]

Wilson Walton International (UK) Ltd. Adam ST., Bowest Field Ln. Stockton-On-Tees, Cleveland TS18 3HQ England

Winton Products Co., Inc. P.O. Box 36332 Charlotte, NC 28236 Phone: [phone]

Woodward Governor Company 1000 E. Drake Rd. Fort Collins, CO 80525 Phone: [phone] Fax: [phone]

Work Accessories, Inc. 4758 Ridge Rd. Cleveland, OH 44144 Phone: [phone] Fax: [phone]

Xerox Engineering Systems 607 Herndon Pky. Herndon, VA 22070 Phone: [phone] Fax: [phone]

Xetron Corporation 40 West Crescentville Rd. Cincinnati, OH 45246 Phone: [phone] Fax: [phone]

Xomox Corporation 4444 Cooper Road Cincinnati, OH 45242 Phone: [phone]

Y-Z INDUSTRIES, INC. (see our advertisement in this issue) 206 Lubbock Hwy. Snyder, TX 79549 Phone: [phone] [phone] Fax: [phone]

Zeeland Ltd. 7210 Blackfoot Trail S.E. Calgary, Alberta T2H 1M5 Canada Phone: [phone]

Zimmerman & Jansen, Inc. 2635 FM 2978 Magnolia, TX 77355 Phone: [phone] Fax: [phone]