1997| 11
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關(guān)于采用鏈條升降載重 |
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點(diǎn)評(píng)
對(duì),鏈條一頭掛負(fù)載一頭配重,也傳動(dòng)
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點(diǎn)評(píng)
機(jī)械手冊(cè),短節(jié)距精密滾子鏈
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Archiver|手機(jī)版|小黑屋|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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