ZCuZn26Al4Fe3Mn3 ZCuZn31Al2环保铜
ZCuZn26Al4Fe3M..
C14700 C14510 ..
ZCuAl9Mn2 ZCuA..
ZCuZn38Mn2Pb2 ..
ZCuAl11Fe3 ZCu..
ZHMnD58-2 ZHMn..