... Trading Co., Ltd. mostly produces steel casting, alloy steel casting, gray iron casting, ductile iron casting, non-ferrous metal casting, and other material castings. We ... other casting arts. waiting for your reply to work together.PROCESSMATERIALSANDResin SandGrey Iron, Ductile Iron, Malleable Iron, Stainless Steel, Carbon, Steel, Aluminum ...