CuNi18Zn19Pb1 CuNi7Zn39Mn5Pb3 2.0918 2.0920 2.0932
CuNi18Zn19Pb1CuNi7Zn39Mn5Pb32.09182.09202.09322.09662.09602.09782.09812.07302.0740)
主营：特殊钢，镁合金，高温合金，铜合金，铝合金，不锈钢，锌合金，工具钢，碳素钢
| 业务 QQ： | 703657942 |