3272| 6
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用鋼加工壁厚2.27mm的圓筒,高70 ,內外表面的公差都是5S ,這個很難嗎? |
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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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