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金属试样的电解抛光方法
Electrolytic polishing method of metallic specimens
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枪械钢制件显微组织评级图及评定方法
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高碳钢盘条索氏体含量金相检测方法
Metallographic test mothod for the sobit percent in the high carbon steel wire rod
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优质碳素结构钢和合金结构钢连铸方坯低倍组织缺陷评级图
Standard diagrams for macrostructure and defect in quality carbon structural steel and alloy structural steel continuous casting blank
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