... ,dimension:5x5-200x200mm 5)Ten-year OEM brass investment casting carbon brush box MaterialsCopper alloy, bronze, brass, other materials can according ... :various kinds of brass,bronze and other copper alloys,for example CuZn39Pb2,CuZn40,CuSn7ZnPb,CuAl10Fe3,C37700,C84400,C83600,C94300, ... are parts of our inspection facilities and machining equipments for copper alloy products,pls pay attention to it.