... Web width:>=200mm Web thickness:>=5.0mm roof h beam specifification Flange width:>=200mmFlange thickness:>=5.0mmWeb width:>= ... :--- If bear the same press, then the H Beam can save 10%-15% material.--- You can have ... of the rooms if you use H Beam than concrete.--- The H Beam is light than the concrete, so ... friendly and reduce the Nuisance dusts.--- The H Beam can save the real working time, because it ...