... casting3.investment casting4.silica sol casting5.water glass casting1. Oil drilling equipment parts 2.alloy steel casting3.investment casting4.silica sol casting5 ... , Electro-plating, Chemical Plating, and other machining processing.InspectionEquipmentsSpectrum analysis instrument, Metallurgical analysis, Tensile strength tester, Hardness tester, Roughness tester, deflection tester ...