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See Chinese contents: GB/T 2585-2021 GB/T 2585-2021: Hot-rolled steel rails for railway
This standard specifies the order content, classification, size, shape, quality and tolerance, technical requirements, test methods, inspection rules, signs and quality certificates of steel rails for railway. This standard applies to 38 kg/m ~ 75 kg/m symmetrical section hot-rolled steel rails and on-line heat-treated steel rails.
