3356| 7
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鋼板通過2000噸液壓機壓力矯正后會逐步升溫到230度會變形嗎 |
點評
成本太高了,量很大
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點評
請問該怎么釋放?
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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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