3822| 4
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兩個凸輪在給予推桿40KG左右的推力時, 能對下面的鋼板有多大的壓力 |
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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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