... 45-gray iron casting; ASTM-ductile iron castings)2. cast Steel (carbon castings; allow castings; stainless steel castings)3.cast Brass (Brass castings and Bronze castings)4. ... Milling machine,Grinding machine,Planer and so on. PROCESSMATERIALSTANDARDSANDCASTINGGreen SandGrey Iron, Ductile Iron, Malleable Iron, Stanless Steel, Carbon, Steel, Aluminium,Brass,BronzeASTMBSJISDINetcFuran Resin SandCold ...