Corrugated steel tiles, known as angle-steel tiles, are commonly used for roofing with a high corrugation height. The upright locking edge is an installation method for metal panels, which is widely used for materials like titanium-zinc plate and aluminum magnesium manganese plate. It involves installing a material resembling an inverted T-shape on the weight-bearing structure, with the top end supporting an oval shape. When installing the panels, they are overlaid on this material, and then locked in place using a locking machine, securing the two sheets of material onto the T-shaped material.