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Q235材料的板的抗拉強(qiáng)度與板的厚度是否有關(guān)系? |
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點(diǎn)評(píng)
老兄,,我查設(shè)計(jì)手冊(cè)上Q235的抗拉強(qiáng)度為380~500MPa,請(qǐng)教下,,這個(gè)范圍有點(diǎn)寬吧,?
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