Porter Warner Industries

General Foundry Service provides comprehensive prototyping, preproduction and short-run production services. The company specializes in computer numerical control machining, finishing and assembly. It produces aluminum and zinc products, utilizing precision sand and investment casting, as well as rubber plaster molding processes. General Foundry Service serves the medical, security, semi-conductor, telecom and emerging industries. Its partner companies include Varian, Cortex Biochem, Delphi Medical Systems, Kiosk Information Systems, Capstone, L3 Communications, Thermo Electron, elumens, Reptron, Lunar Design and FusionDesign. General Foundry Service provides semi-conductor companies with large and small cast components. It provides precision castings for large chassis, housings and hand-held units. General Foundry Service is located in San Leandro, Calif.