6093| 6
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表面處理方式技術特性對比 |
點評
開玩笑呢鍍硬鉻和鍍鎳硬度差不多
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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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