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Q235與Q345的使用比較,高手請(qǐng)進(jìn) |
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點(diǎn)評(píng)
壓力容器上面是叫16MnR
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點(diǎn)評(píng)
恐怕年輕一點(diǎn)的不會(huì)知道什么是錳鋼,還以為是彈簧鋼呢吧!
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