GB standard steel angle bar (ms steel angle) material:Q235,SS400,A36,ST37-2,S235JR size:25x2mm-200x20mm ... length:6m,9m,12m GB standard steel angle bar(equal steel ... angle,hot rolled angle steel) 1.size: 2.5#--20#2.material: Q235B, ... SS400,ST37-2,S235JR3.length:6m--12m4.Chinese ...