简要论述了电子工业中接插件硬金镀层的耐磨机理，获得硬金镀层的镀液，节金代金以及镀金层的质量检测等问题。
The present paper deals with the bath for hard gold plating, the quantity controll and the wear mechanism of coatings as well.
手镯环为中空环形结构，采用硬塑或轻金属，外表面镀（涂）金、银及装饰涂料。
The outer surface of the bracelet ring is coated by gold, silver and decorative coating. The connecting device can adopt a spring or a snap buckle sheet.
手镯环为中空环形结构，采用硬塑或轻金属，外表面镀（涂）金、银及装饰涂料。
The outer surface of the bracelet ring is coated by gold, silver and decorative coating. The connecting device can adopt a spring or a snap buckle sheet.
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