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铁路机车、车辆车轴用钢
Axles steel for railway locomotive and wagons
价格:¥0.00
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钢的化学分析用试样取样法及成品化学成分允许偏差
价格:¥0.00
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钢及钢产品交货一般技术要求
Steel and steel products. General technical delivery requirements
价格:¥0.00
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低合金钢 多元素含量的测定 激光剥蚀-电感耦合等离子体质谱法(常规法)
Low alloy steel.Determination of multi-element contents.Laser ablation-inductively coupled plasma mass spectrometry (Routine method)
价格:¥0.00
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涂装前钢材表面处理规范
Specification of steel surface preparation before application of paint
价格:¥0.00
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