perforated steel angle Steel Grade:Q195,Q235,Q345,Q420,ASTM A36,SS400/SS540 size: ... *3-200*200*24mm L:5.8-12m or customized perforated steel angle 1. Standard: GB /T9787,ASTM,JIS,EN,DIN2 ... . Steel Grade:Q195,Q235,Q345,Q420,ASTM A36,SS400/SS5403. Length: ...