... ., Ltd. mostly produces steel casting, alloy steel casting, gray iron casting, ductile iron casting, non-ferrous metal casting, and other material castings. ... We mainly use investment casting art, sand casting art, silica sol casting art, die casting art, and other casting arts. waiting for ... .cast Brass (Brass castings and Bronze castings)4.cast Aluminum (ASTM A 356T6; 380)B. the Forging foundries ...