1)investment casting 2)precision/lost wax casting 3)CNC,CMM 4)ISO 9001:2000, ... ' OEM service Investment CastingMaterial and Equipments:Material:various kinds of brass,copper alloy,for example CuZn39Pb2,CuZn40,CuSn7ZnPb,CuAl10Fe3,C37700,C84400 ... -1,HPb58-3 etc.. Casting:Silica sol lost wax casting(precision casting,investment casting),Sand casting Machining:CNC,four-axis milling ...