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标准号中文名称英文名称A1-00碳素钢丁字轨Standard Specification for Carbon Steel Tee RailsA2-02普通型,带槽和防护型碳素工字钢轨Standard Specification for Carbon Steel Girder Rails of Plain, Grooved, and Guard TypesA3-01低、中、高碳素钢
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