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立車鏜60左右的孔鑄件,孔徑要求正0.025,加工出來孔的直徑一會偏大一會偏小什么原因 |
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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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