Standard AISI, ASTM, BS Grade HRB 335,HRB400,HRB500 Diameter12mm,16mm,20mm,25mm,32mm,etc diameter:12mm,16mm,20mmetcSUPPLYING & STOCKING & CUSTOMIZING 12*400mm,12*600mm,16*400mm,16*600mm,16*800mm,20*400mm,20*600mm,20*800mm,etc we have different lengths available material: galvanized round bar,flat bar,rebar etc. dowel