3938| 7
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哪位能介紹一下液體氮化與鎳磷鍍及磷化工藝區(qū)別 |
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點評
代替不了!
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點評
是的,不過現(xiàn)在氣體用得多
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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