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凤凰网
3 年
钢材期货基础知识
热轧带肋钢筋》HRB400或HRBF400牌号的φ16mm、φ18mm、φ20mm、φ22mm、φ25mm螺纹钢。 2.替代品:符合国标GB1499.2-2007《钢筋混凝土用钢 第2部分:热轧带肋钢筋 ...
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Makary to lead FDA
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