The color golden yellow or nickel white is different because of composition copper zinc alloy or nickel copper alloy 材质有铜锌合金镍铜合金颜色有金黄镍白反面图案皆为国徽。
2.
The color ( golden yellow or nickel white ) is different because of composition ( copper zinc alloy or nickel copper alloy ) 材质有铜锌合金、镍铜合金;颜色有金黄、镍白;反面图案皆为国徽。
3.
Abstract : this paper describes the practice in technical condition c ontrol and electrolyte purification for high - nickel copper anode electrolysis 文摘:介绍了高镍铜阳极板电解的技术条件控制和电解液净化的实践。