9081| 11
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求大神指導!急!一根40mm的軸,可以承受向下300kg,向上300kg的拉力嗎?轉矩不大 |
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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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