12958| 16
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關于O型圈的線徑和密封大小的關系 |
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點評
機械密封安卓版,看樓下
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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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