Before revision: It is distinguished from I-beam or H-beam or W-beam type steel cross sections in that those have flanges on both sides of the web.Manual of Steel Construction, 8th Edition, 2nd revised printing, American Institute of Steel Construction, 1987 Various structural steel shapes __TOC__ Usage
After revision: Cross-section.It is distinguished from I-beam or H-beam or W-beam type steel cross sections in that those have flanges on both sides of the web.Manual of Steel Construction, 8th Edition, 2nd revised printing, American Institute of Steel Construction, 1987 Various structural steel shapes __TOC__ Usage