... strong, 2,save cost 3,easy installation 4,anti-earthquake steel H-beam ( I-beam ) 1.material:,Q235,Q345, 2.thickness ... 3.length:6m-12m 4.flange Width:100mm-406mmH beam steel is mainly used in engineering, plant, machinery and equipment, bridges ... of strong, energy conservation and environmental protection. weld H beam steel structure for workshop/warehouse