7727| 19
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分享一個金屬表面超精加工工藝 |
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點評
這誤差可能和材質有關,應該不好控制。
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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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