1)round steel bar 2)standards :GB,JIS,DIN,ASTM and ... ,65Mn,etc . 4)diameter :4mm-400mm 1)round steel bar 2)standards :GB,JIS,DIN,ASTM and so ... ,etc .4)diameter :4mm-400mm5)best exporter TypeRound steel barStandardGB/ASTM/DIN/JIS and so onGrade15Mn,16Mn,50Mn, ... 65Mn,etc .Diameter4mm-400mm and moreLength6m-12m or fixed as standardApplicationConstruction industry with all types of reinforced concrete ...