10421| 21
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鉆孔難題 |
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點評
鉆床是專門為鉆孔而設(shè)計的,應(yīng)該效率最高!可分為兩次鉆削,第二次精鉆!修光刃口一樣可以得到較好的粗糙度的!而且效率不會低的。
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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