7758| 25
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重型車床尾座問題 |
點評
重型工件用硬質合金死頂尖,研磨后再精車。
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小黑屋|手機版|Archiver|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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