steel I beam 1.Material: Q235, Q345/SS330, SS400/ S235JR, S355JR 2. ... -300mm 3.length:6,9,12m 4.Factory,ISO9001 Steel I Beam is widely used in various building structures, bridges, vehicles ... , support, and machinery.1) TYPE: HOT ROLLED I BEAM 2) SIZE: 10#---63# 3) LENGTH: 6M, 9M, 12M ... #A360*136*1060.03736#B360*138*1265.689 36#C360*140*1471.341 40#A400*142*10.567.598 40#B400 ...