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最近齒輪箱換了一款潤滑油,蝸桿上的推力球軸承卻壞了 |
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Archiver|手機版|小黑屋|機械社區(qū) ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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