C54400 C60600 C60800环保铜合金板材带材棒
铁黄铜HFe59-1-1 H..
ZCuAl9Mn2 ZCuA..
C54400 C60600 ..
CuP8 CuMg20 Cu..
QAl11-6-6 QAl9..
C37000 C37700 ..