... SandGrey Iron, Ductile Iron, Malleable Iron, Stainless Steel, Carbon, Steel, Aluminum ,Brass, BronzeClay Sand INVESTMENTSilica SolStainless Steel, Carbon Steel, Special Alloy ... )3.cast Brass (Brass castings and Bronze castings)4.cast Aluminum (ASTM A 356T6; 380)B. the Forging foundries produce: forgings ... Lathe Milling machine,Grinding machine,Planer and so on. stamping auto parts machining parts