3525| 5
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Q235A,Q345A為什么不用做沖擊試驗(yàn)? |
點(diǎn)評(píng)
Q235A恰恰是不保證化學(xué)成分,只保證力學(xué)性能。
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Archiver|手機(jī)版|小黑屋|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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