... 2.Standard:GB,JIS 3.Length :6-12meter mild steel angles Thickness3-24 mmSize20-200mmLength6-12meterStandardGB, JISMaterialSS400,SS540,S235JR,Q235B,Q345B ... .12160x1848.6363x87.469100x1217.898180x1848.63470x55.397100x1420.611200x2471.168 mild steel angles