... :Q235,SS400,A36,ST37-2,S235JR size:25x2.5mm-200x20mm length:6m,9m,12m GB standard angle steel(equal steel ... angle,hot rolled angle steel) 1.size: 2.5#--20#2.material: Q235B, ... SS400,ST37-2,S235JR3.length:6m--12m4.Chinese standardSpecification ... .35200*200*2471.16890*90*79.656 GB standard angle steel