(一)中國鋅錠的牌號及化學成分見表3-19。表3-19鋅錠的牌號及化學成分牌號化學成分(質量分數)/%標準號Zn(不小于)雜質含量(不大于)PbCdFeCuSnAlAsSb總和Zn99.99599.9950.0030.0020.0010.0010.001---0.0050GB/T470-1997Zn99.99*99.990.0050.0030.0030.0020.001---0.010Zn9 (共 10712 字) [閱讀本文] >>
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 (一)中國鋅錠的牌號及化學成分見表3-19。表3-19鋅錠的牌號及化學成分牌號化學成分(質量分數)/%標準號Zn(不小于)雜質含量(不大于)PbCdFeCuSnAlAsSb總和Zn99.99599.9950.0030.0020.0010.0010.001---0.0050GB/T470-1997Zn99.99*99.990.0050.0030.0030.0020.001---0.010Zn9 (共 10712 字) [閱讀本文] >>