1)silicon bronze investment casting 2)CNC,four-axis Milling center ... investment castingMaterial and equipments: Material:various kinds of brass,bronze and other copper alloys,for example CuZn39Pb2,CuZn40,CuSn7ZnPb ... price and high quality.Detail descriptionsmaterialCopper, brass, bronze, aluminum bronze, tin bronze, silicon bronze, manganese brassAnd other copper alloy Processing stepCasting, ...