... , GB,JIS 3.Length:9m,12m 4.Diameter:12mm-24mm DEFORMED STEEL BAR: 1.Standard: ASTM, GB, JIS 2.Grade: HRB335, ... the certificate of ISO9001.THE DEFORMED STEEEL BAR Various types of reinforced concrete building industry NameDefromed steel barSpecificationφ12~φ25MaterialHRB335,HRB400StandardASTM, ... size,regular package,chemical and mechnical properties are stability. Deformed steel bar