Home - Fontana Aluminum Foundry | Southern California Since 1946, Fontana Foundry has been Southern Californiaâs premier designer and manufacture of top quality aluminum castings, sand castings, permanent mold castings and gravity die castings. Alloys poured include 356, A356, A356SR, A328/808 and 713. Fontanafoundry.com~Site InfoWhoisTrace RouteRBL Check