煙臺鵬暉銅業有限公司
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描述
聯絡供應商
描述
- Executive standard: GB/T 4134-2003
- Composition: No. 1 Gold: Au≥99.99% Ag≤0.005% Cu≤0.002% Fe≤0.002% Pb≤0.001% Bi≤0.002% Sb≤0.001%, No. 2 Gold: Au≥99.95% Ag≤0.020% Cu≤0.015% Fe≤0.003% Pb≤0.003% Bi≤0.002% Sb≤0.002%
- Application: Used in the industry of jewelry crafts making, medicine, aviation components, electronic industry and semiconductor, etc.
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