6215| 27
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大神們快來報給我看下尺寸標注 |
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點評
兩個控制公差特征是采用不去除材料加工,其他的需要機加工?
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小黑屋|手機版|Archiver|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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