... ProcessPrecision casting, Sand casting, Investment casting, Silicasol castingCasting MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Special steel, Wear ... , Tensile strength tester, Hardness tester, Roughness tester, deflection tester, Impact test machine, Projector, Altimeter, Scale Micrometer, pressure tester, etc. Quality control ...