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設計求助:焊接操作機滑臺、導輪軌道部分 |
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點評
可以承重啊,上網可以查
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點評
是滾動摩擦。
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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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