11718| 28
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為什么有的切屑是藍色的? |
點評
一個是看切削的廢料,還有看你零件表面的光潔度
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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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