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达克罗钢结构大六角螺栓
WebNhững từ vựng tiếng Trung về sắt thép Thuật ngữ chuyên ngành Luyện kim thép. 1. Thép biến dạng. 异型钢. Yìxíng gāng. 2. Thép cuộn cán nguội. 冷轧板卷. Lěng zhá bǎn juǎn. WebApr 9, 2015 · 20#和Q235钢号一样 俗称普碳钢 最常见最常见的一种钢. 20g一般称锅炉钢 顾名思义就知道是做什么的了 我在武汉市场用Q235R钢号来称呼的也很多. 20g和20G肯定 … intention to award
Alloy20合金到底是镍基合金,还是不锈钢? - 知乎专栏
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