... ASTM H beam/steel beam /steel structure / steel h -beam Usage: workshop, office, warehouse, large-span building. ASTM H beam/steel beam /steel structure / steel h -beamType: ... installation, time saving, labor-saving and stable structural.3 Light weight, high strong, large span and can ... and be use circularly.6.Usage: workshop, office, warehouse, single-layered heavy plants, large-span public buildings, ...