7879| 18
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請教D0.25的孔如何加工 |
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點評
真厲害,這么高硬度精加工為啥不用磨?
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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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