3089| 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 |
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點評
請問該怎么釋放,?
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,,浙公網(wǎng)安備33038202004372號 )
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