... ,chemical test. 5.Quality Assurance Using Name:Steel Casting parts PROCESSMATERIALSTANDARDSANDCASTINGGreen SandGrey Iron, Ductile Iron, Malleable Iron ... Steel, Carbon Steel, Special Alloy Steel Bronze,Brass, AluminumSilica SolFORGINGHammer ForgingStainless Steel, Carbon Steel, Alloy Streel, Brass, AluminumDie ForgingRoll ForgingSTAMPING MACHININGSTAMPING MACHININGAll metal material Steel Casting ...