6852| 10
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50*50*5的國(guó)標(biāo)角鋼有沒(méi)有好辦法切45度 |
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點(diǎn)評(píng)
切45度焊是不是受力最穩(wěn)定,能這么設(shè)計(jì)看來(lái)沒(méi)有敷衍了事。
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