Welded Extended L-Bracket for Facade Support Systems This welded extended L-shape angle bracket is manufactured from Q235B carbon steel as standard, with a hot-dip galvanized anti-corrosion finish applied to the surface. It is formed by welding two steel plates together — distinguishing it from a single-bent angle bracket — and features an extended L-shaped structure. The long circular hole serves as the core adjustment structure, allowing installation and fine tuning in both