2249| 2
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各位大神,這個(gè)應(yīng)該用什么材料啊,? |
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點(diǎn)評(píng)
Q345的最低屈服度是345MPa,,恐怕達(dá)不到要求吧
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小黑屋|手機(jī)版|Archiver|機(jī)械社區(qū) ( 京ICP備10217105號(hào)-1,,京ICP證050210號(hào),浙公網(wǎng)安備33038202004372號(hào) )
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