分析了小五金产品滚镀黄铜层易产生棕黑斑点的原因，论述了黄铜层出现棕黑斑点是零件基材腐蚀的开始。
Causes of brown or black spots in brass barrel plating of small hardware were analyzed and some counter measures were put forward.
那些铜制器具表面镀了一层黄铜。
对化学镀镍加工的凝汽器黄铜管进行了性能检测，镀镍管镀层各项性能指标均达到了相关的技术标准。
The plating performance of electroless nickel-plated condenser brass tubes was tested and all the performance indicators were in accordance with the related technology standards.
而且当单钩和别子在开锁时和相对柔软的黄铜或镀镍层接触的时候，就会留下凿痕和磨擦的痕迹。
When contacting the softer brass or nickel-silver of locking components, pick and tension tools leave marks in the form of gouges and scratches.
为了获得电镀的最佳结果，在生产中对珍珠镍、光亮镍、酸性铜和黄铜四种镀液的成分参数进行了统计分析。
The component data of pearl nickel, bright nickel, acidic copper and brass plating solution in production were analyzed when the best result of the plating deposit obtained.
这颗球的材质是镀镍的黄铜。
襟翼前面有标志刻春季行动镀铑黄铜库珀锁与钥匙和工作键。
Flap front has logo-engraved spring-action rhodium-plated brass Cooper lock with key fob and working keys.
采用粉末渗镀法，研究了黄铜渗铝工艺。
The technique of aluminising on brass by powder plating method has been studied.
它采用黄铜镀黑聚合物，镍，锌等对辘或纸箱。
It is available in Brass Plated Black polymer, nickel, zinc etc. on reels or cartons.
外壳采用黄铜镀镍制成，美观耐用；
Shell is made with nickel-plated brass, beautiful and durable;
外壳采用黄铜镀镍制成，美观耐用；
Shell is made with nickel-plated brass, beautiful and durable;
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