1.GB1499.2-2007,HRB335,HRB400,HRB500, BS 4449/1997, Gr.460B, ASTM A615, ... :8-54mm 3.L:6-12m 1. Standard: GB1499.2-2007, BS 4449/1997,ASTM A615,JIS G3112, BS4449 Gr. 460B ... -12mDeformed Steel BarFeatures:1.Standard and grade:a)GB1499.2-2007 HRB335,HRB400,HRB500b)BS 4449/1997 Gr.460Bc)ASTM A615 ... types of reinforced concrete structures and so on. GB1499.2-2007 deformed Steel Bar