7676| 3
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請推薦屈服強度大于850MPa,抗拉強度大于1000MPa的材料 |
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評分 | ||
小黑屋|手機版|Archiver|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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