... *3-200*200*24mm L:5.8-12m or customized. steel angle 75*75mm1. Standard: GB /T9787,ASTM,JIS,EN,DIN2 ... . Steel Grade:Q195,Q235,Q345,Q420,ASTM A36,SS400/SS5403. Length: ... architecture and engineering structure, such as the beam, Bridges, transmission tower, lifting transportation machinery, the ships, the industrial furnace,container frame ...