1.Standard:GB1499.2-2007,ASTM A615,BS4449 2.Grade:HRB335,HRB400 3.Diameter:6.5-10mm 4.high quality,low price,best service 1.Standard:GB1499.2-2007,ASTM A615,BS4449 2.Grade:HRB335,HRB4003.Diameter:6.5-10mm4.high quality,low price,best service high quality HRB335 Ribbed bar