steel I beam 1.Material: Q235, Q345/SS330, SS400/ S235JR, S355JR ... 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 ... S235JRChinese stardand Materialproduct codeSpecification(mm)Weight(kg) 8#80*50*4.57.52 Q235 10#100*68*4.511. ...