He wanted to plate copper with silver.
他想给铜容器镀银。
It could plate gold, silver, nickel and copper on any metal material, which shall reduce the cost with better effect.
可在任意金属材料上做镀金、镀银、镀镍、镀铜，降低了成本，效果更好。
It could plate gold, silver, nickel and copper on any metal material, which shall reduce the cost with better effect.
可在任意金属材料上做镀金、镀银、镀镍、镀铜，降低了成本，效果更好。
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