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Technical specification for materials used for non-destructive testing in railway.Part 3:Probes for ultrosonic testing
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铁路用无损检测材料技术条件.第2部分：渗透检测用材料
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铁路机车用合金钢车轴轴坯订货技术条件
Specification for shaft blanks on alloy steel axle in railway locomotive of order
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装载加固材料和装置.第2部分:条形草支垫
Material and device for loading and securing freight-Part 2:Strip straw pad
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铁道客车钢板、型钢下料加工和冷冲压件通用技术条件
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铁道车辆用材料耐火性能试验.火反应分级
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铁路车辆用材料耐火性能试验按材料种类和应用情况确定试验方法
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