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See Chinese contents: YB/T 4212-2010 YB/T 4212-2010: Hot-rolled wide flat for construction
This standard specifies the terms and definitions, order content, dimensions, shape, weight and allowable deviations, technical requirements, test methods, inspection rules, packaging, markings and quality certificates of hot-rolled wide flat steel for structural use. This standard is applicable to strip-shaped wide flat steel which has a thickness of 4 mm ~ 40 mm, a width of 150 mm ~ 600 mm, in a rectangular cross-section for structural use, hot-rolled on all four sides.
