5846| 3
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這些低碳鋼用什么螺紋車刀,刀片不粘刀又耐用 |
點評
崩刀尖一般是沒有按照合理的切削參數做。
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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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