1.Name:Investment casting parts 2.Material:Aluminum 3.Weight:10g-100kg ... test,Impact test. 5.Quality Assurance. Using Investment casting parts 1. Materials:carbon steel, alloy steel, stainless steel, ... Spectrovac.8.Surface finish: polishing, oiled(rust-prevented), zinc-plated, nickel-plated, chrome-plated, hot-galvanized, sandblasting, painting, powder-coating, PROCESSMATERIALSTANDARDSANDCASTINGGreen ...