1.Material:brass 2.investment casting, machining 4.ISO9001-2000 5.foundry Non-ferrous casting 1.Material:the part showed is made ... of brass,anyway we can any metal parts,such as stainless steel,steel,iron,non-ferrous metal,aluminum,brass,bronze by invesment ... whole casting procedure in sequence from mold-designing,molding,investment casting,heat-processing,surface treating,and machining ,with annual ...