C36600 C36700 C36800环保铜合金板材带材棒
H65 H63 H62 H5..
BMn3-12 BMn40-..
C42200 C42250 ..
BFe10-1-1 BFe..
铸造黄铜ZHD68 ZHD6..
ZCuPb15Sn8 ZCu..