C67400 C67500 C67600 进口锰青铜

C67400 锰青铜

Cu 57-60,Pb0.5-3, Fe0.35, Sn0.3, Zn Rem, Ni0.25, Ai0.5-2, Mn2-3.5, Si0.5-1.5

C67500 锰青铜

Cu 57-60,Pb0.2, Fe0.8-2.0, Sn0.5-1.5, Zn Rem, Al0.25, Mn0.05-0.5

C67600 锰青铜

Cu 57-60,Pb0.5-1, Fe0.4-1.3, Sn0.5-1.5, Zn Rem, Mn0.05-0.5