1998| 11
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關于采用鏈條升降載重 |
點評
對,鏈條一頭掛負載一頭配重,也傳動
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點評
機械手冊,短節距精密滾子鏈
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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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