steel I beam (IPE/ IPEAA) 1.standard:chinese standard 2.material:Q235,SS400,ST37-2,S235JR 3.size:80mm-300mm 4.length:6,9 steel I beam (IPE/ IPEAA) 1.standard:chinese standard 2.material:Q235,SS400,ST37-2,S235JR 3.size:80mm-300mm 4.length:6,9,12m we can offer you all kindly of sizes steel I beam,pls check the specifications and modles of steel I beam(IPE/IPEAA) as following:SizeHigh(mm)tolerance( ...