California metalcaster completes military order.[ILLUSTRATION OMITTED] AlumAlloy Co. Inc., Ontario, California Ontario is a city located in San Bernardino County, California, United States. As of the 2000 Census, the city had a total population of 170,373. It is the home of LA/Ontario International Airport and the huge Ontario Mills shopping mall (the largest in Southern California and one , recently completed a contract for more than 300 bunker buster bunker buster n. A bomb designed to attack underground fortified positions by penetrating rock or concrete to a certain depth before exploding. Noun 1. bomb nose cones for the U.S. Navy. The Navy designed the new bomb nose cone castings, which require Grade C radiography radiography: see X ray. testing, to minimize machining costs. The castings were required to meet inside and outside contour tolerances of +/-0.026 in. The tolerances were verified with a coordinate measuring machine. "At first we were hand-grinding the outer surface of the castings [to remove the ingates and risers], and it was time consuming," said Steve Isham, the company's general manager. "Later, machine stock was added to the pattern contour, and the castings were machined in-house to the final contour." AlumAlloy is a sand casting Casting is the process of production of objects by pouring molten material into a cavity called a mold which is the negative, or mirror image of the object, and allowing it to cool and solidify. facility that serves the aerospace and automotive markets, in addition to its defense customers. "The [nose cones'] symmetrical configuration lent itself to a vertical pour," said David Howell David Howell is a name shared by several notable men:
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