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1号银、2号银 buy in Yantai
Buy 1号银、2号银
1号银、2号银

1号银、2号银

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China, Yantai
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执行标准:GB/T 4135-2002
成 分:() 一号银:Ag≥99.99% Bi≤0.002% Cu≤0.003% Fe≤0.001% Pb≤0.001% Sb≤0.001% 二号银:Ag≥99.95% Bi≤0.004% Cu≤0.025% Fe≤0.003% Pb≤0.005% Sb≤0.002%
用途:用于制造轴承合金、触媒、焊料、齿套、工艺品、感光材料、电池、接触器等.
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1号银、2号银
1号银、2号银
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