Corrugated sheet is a lightweight roofing sheet made of hot-dip galvanized steel coils, which are cold-bent and rolled into continuous waves or trapezoidal ribs. The zinc layer is 60-275 g/m², the thickness is 0.15-0.8 mm, the effective width is 600-1050 mm, and the length can be customized. The corrugated structure enhances strength and drainage, and has the advantages of corrosion resistance, fire resistance, earthquake resistance, easy installation, and recyclability. It can be pre-painted in RAL colors. It is suitable for industrial plants, warehouses, agricultural greenhouses, temporary houses and residential sloping roofs, and is a fast and economical alternative to traditional tiles.