... / processing with trading.Hot rolled angle bar: (1)Equal angle bar: Material Q235A, B, C ... , D; Q345 A, B, C, D; Q420; 16Mn. Specification: 2, 2. ... 2) Unequal angle bar: Material Q235, Q235A, Q235B, Q345, Q345B, CCSA, CCSB. Specification: 2.5/1.6, 3.2/2, 4/2 ... .5, 4.5/2 ...