5594| 13
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非標簡易軸承設計求教 |
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點評
R角應該大多少?可否請大俠出個示意圖詳細描述一下自行車中軸的結構?
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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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