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ASTM 607 等級 65 鋼,對應國內什么材料?---緊急求助 |
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ASTM_A01008(A)1008M-2001.pdf
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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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