4960| 4
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內孔斷削,鐵削總是纏繞在刀桿上 |
點評
應該怎么樣磨斷削槽
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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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