a.Material:Grey Iron b.Production process:Sand Casting c ... foundries produce:1.cast Iron (ASTM-A48; Class 25~45-gray iron casting; ASTM-ductile iron castings)2. cast Steel (carbon ... machine,Planer and so on.PROCESSMATERIALSTANDARDSANDCASTINGGreen SandGrey Iron, Ductile Iron, Malleable Iron, Stanless Steel, Carbon, Steel, Aluminium, ... &TESTING EQUIPMENT:OUR MAIN MARKET:,etc. cast iron auto parts