BMn3-12 BMn40-1.5 BMn43-0.5环保铜
H65 H63 H62 H5..
BMn3-12 BMn40-..
C42200 C42250 ..
BFe10-1-1 BFe..
铸造黄铜ZHD68 ZHD6..
ZCuPb15Sn8 ZCu..