GL steel is a galvanized steel sheet, which is coated with a zinc-based metal layer to prevent rusting. GL may stand for galvanized tin steel or zinc aluminized steel, depending on the manufacturer and application.
The primary production material is Q235 steel, which gives it a high capacity and long lifespan. Pre-galvanized and hot-dip coated surfaces offer sufficient durability while providing great weather resistance and protecting the steel board from corrosion.