... :ISO 14001,ISO9001 Hot rolled I beam:We produce and export I beam with high quality and competitive pricesI-beam steel is ... for use in various building structures, bridges, vehicles, brackets and machinery. Features: 1) Material: Q235, Q345, SS400, 2) Standard: GB, ASTM, ... steel products ,such as steel i beams,h beams,u channels,hollow sections ,furniture pipes,welding rods and so on.If you are ...