国标GB/T470-2008
0#锌锭
化学成份：
锌(Zn)≥99.995%
铅(Pb)≤0.003%
镉(Cd)≤0.002%
铁(Fe)≤0.001%
铜(Cu)≤0.001%
锡(Sn)≤0.001%
铝(Al)≤0.001%
杂总和≤0.005%