铸造铜合金:CuZn36CuZn37CuZn40CuZn35Pb1CuZn35Pb2CuZn36Pb3CuZn37Pb0.5CuZn37Pb1CuZn37Pb2CuZn38Pb2CuZn38Pb4CuZn39Pb0.5CuZn39Pb2CuZn39Pb2Sn,CuZn39Pb3CuZn39Pb3SnCuZn40Pb1AlCuZn40Pb2CuZn40Pb2AlCuZn40Pb2SnCuZn41Pb1ALCuZn42PbAlCuZn43Pb1AlCuZn43Pb2CuZn13Al1Ni1Si1CuZn19SnCuZn20Al2AsCuZn23Al3CoCuZn23Al6Mn4Fe3PbCuZn25Al5Fe2Mn2PbCuZn28Sn1AsCuZn30AsCuZn31Si1CuZn32Pb2AsFeSi)