5536| 8
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紫銅工件上要鍍一層,硬度好,導電好的鍍層,選什么工藝的啊 |
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點評
鍍鎳也可以試試
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Archiver|手機版|小黑屋|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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