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H型钢_百度百科
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http://baike.baidu.com/item/H%E5%9E%8B%E9%92%A2
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Snorkels
HN 是H型钢高度和翼缘宽度比例大于等于2，主要用于梁；工字钢的用途相当于HN型钢; H 2 ... 150*150 150*150 150 150 7 10 31.9 175*175 175*175 175 175 7.5 11 40.42 ...
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