3982| 4
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鋼輥筒在1000轉的高轉速和零下20攝氏度環境下能正常轉動不斷裂嗎? |
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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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