Angle steel bar Standard: GB, ASTM, JIS, Material: Q195, Q235, Q345B, SS400 20^20~300^300mm ... Angle steel bar1. Item: angle steel bar2. Standard: GB, ASTM, JIS,3. Material: Q195, Q235, Q345B, SS4004. Specification: 20^20 ... ,12±0.6100±1.86,7,8,10,12,14,16±0.6110±1.87,8,10,12,14±0.6125 ... .6140±1.810,12,14,16±0.6160±2.510,12,14,16±0.6180±2.512,14,16,18±0.6200±2 ...