5481| 15
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此類零件有好的加工方法嗎 |
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點評
如果這個精度也只能內磨與外磨了
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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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