1.Name:Investment casting parts 2.Material:Aluminum 3.Weight:10g-100kg 4.Test:Tensile ... test,Impact test. 5.Quality Assurance. Using Investment casting parts 1. Materials:carbon steel, alloy steel, stainless steel, brass, ... Hardness Monitor, hydraulic universal testing machine, magnetic particle inspection,FSQ Vacuum Foundry Spectrovac.8.Surface finish: polishing, oiled(rust-prevented), zinc ...