standard I beam sizes 1.standard:chinese standard 2.material:Q235,SS400,ST37-2,S235JR 3.size:80mm-300mm 4.length:6m,9m metal structral steel i beam price 1.standard:chinese standard 2.material:Q235,SS400,A363.size:80*50*4.5mm-300*126*9mm 4.length:6m,9m,12m or as your request 5.payment :L/C,T/T6.delivery time : within 30 days after we receive your L/C 7.MOQ: 22 tons8.package: in bundle with strips ...