ZHAlD67-2.5 ZHALD61-2-2-1环保铜合金
C17000 C17200 ..
ZHAlD67-2.5 ZH..
ZHAlD67-5-2-2 ..
ZCuSn3Zn11Pb4 ..
ZCuSn3Zn8Pb6Ni..
ZCuZn38 ZCuZn..