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管子內徑如何加工到光潔度1.6 |
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點評
普通包裝機(低利潤)無須高精度,軸承也是用最普通的,用一兩絲的公差反而軸承容易卡死,也不利裝配!
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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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