3186| 7
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16Mn能否用無縫鋼管代用 |
點評
看具體應用了,對材料的主要性能要求是什么,然后對比一下看能否滿足
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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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