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See Chinese contents: GB/T 5223.3-2017 GB/T 5223.3-2017: Steel bars for the prestressing of concrete
This Standard specifies the terms and definitions, classification, codes and designation, ordering content, dimensions, shapes, weights and tolerances, technical requirements, test methods, inspection rules, packaging, marking and quality certification for steel bars for the prestressing of concrete. This Standard applies to plain, helical grooved, helical ribbed and ribbed round bars for the prestressing of concrete.
