4293| 10
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請問軌道表面粗糙度取Ra多少合適? |
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點評
表面粗糙度應用值,沒事多翻翻機械設計手冊
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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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