H beam iron bars for flexible building construction with kinds of sizes 1.Length: 6m-12m 2.Flange width:50mm-400mm H beam iron bars for flexible building construction with kinds of sizes Product data: StandardQ235 ,Q345 or JIS-SS400 Length6m-12mFlange width50mm-400mmFlange thickness7mm-50mmWeb width100mm-900mmWeb thickness5.5mm-30mmCertificationISO: 9001:2000 Shipping & Payment Terms: Port: ...