We are specialized in producing weld h beam for construction application. H beam china leading manufacturer - Shunli Leading manufacture of weld H beam steel structure,applicated widely in bridge ,workshope ,building.....An I-beam, also known as H-beam, W-beam (for "wide flange"), rolled steel joist (RSJ), or double-T (especially in Polish, Spanish and German), is a beam with an I- or H-shaped ...