锌(Zn)余量,
铅(Pb)≤0.10,
铁(Fe)≤0.50,
锑(Sb)≤0.005,
磷(P)≤0.01,
铋(Bi)≤0.003,
铝(Al)2.5~3.5,
镍(Ni)2.0~3.0,
铜(Cu)57.0~60.0,
杂质总和%≤0.9
锌(Zn)余量,
铅(Pb)≤0.10,
铁(Fe)≤0.50,
锑(Sb)≤0.005,
磷(P)≤0.01,
铋(Bi)≤0.003,
铝(Al)2.5~3.5,
镍(Ni)2.0~3.0,
铜(Cu)57.0~60.0,
杂质总和%≤0.9
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