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發(fā)布時(shí)間: 2015-9-22 11:52
正文摘要:本人第一次接觸,第一種方法,直接用32A鋼作橫梁,見圖 第二種,是用方管400x300x12,作橫梁,32A鋼焊接在方管下面,見圖 請(qǐng)各位大俠給點(diǎn)意見參考一下,謝謝!不足之處,請(qǐng)大力批評(píng)! ... |
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