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Terms for subject Metallurgy containing 中翼 | all forms | in specified order only
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中翼I 型钢的medium flange (【技】根据 ISO6929: 1987,中翼缘指的是翼缘宽度不大于型钢公称高度的 0. 66 倍,且小于 300mm。)
中翼medium flange