... rolled i beam steel / i steel beam Usage: Workshop,office,warehouses, single-layered heavy plants, large-span public build hot rolled i beam steel / i ... steel beamMaterial: SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc.Standard: GB/JIS/EN ... Expressway. Our main products include angle steel, channel, I-beam, H-beam, deformed bar, round bar, steel pipe, steel plate ...