6866| 16
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這么大弧度的槽鋼、H型鋼是怎么做出來的? |
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點評
冷彎更不好了,控制不了了,冷作強化,塑性降低了
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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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