reinforcing steel bars 1.Standard: GB 1499.2, GB13788, ASTM A 615,BS4449 2.Steel grade: HRB335, HRB400, HRB500 reinforcing steel barsStandard: GB 1499.2, BS4449, GB13788, ASTM A 615Steel grade: HRB335, HRB400, HRB500, HRB335E,HRB400E, HRB500E, BS460B, B500B,Gr40,Gr60, CRB550Diameter: 8mm-42mm