铜合金:CuZn40 CuZn20Al2 CuZn28Sn1 CuZn34Pb2 CuZn38Sn1 CuZn39AlFeMn CuZn35Pb1 CuZn37Pb2 CuZn38Pb2 CuZn39Pb3 CuZn38Pb4 CuZn40Pb2 CuZn40Pb CuZn40Pb CuZn36Pb3 CuZn5 CuZn30As CuZn39Pb1 CuZn43Pb2 CuZn37Pb2 CuZn3Mn3Ai2Si CuNi10Zn42Pb2 CuNi10Zn27 CuNi12Zn24 CuNi15Zn21 CuNi18Zn20 CuNi18Zn27 CuNi10Zn28Pb1 CuSn4 CuSn5 CuSn6 CuSn8 CuZn32Pb1 CuSn4Zn2 CuSn4Pb4Zn3 CuAl9Fe4Ni4