5255| 23
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兩米長的鏈條不加惰輪可以嗎? |
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點評
考慮負載150kg,3分的確實小了
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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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