WP3 corrugated steel sheets is the mainly product of our company, it has 32mm high rib with equal width and large wave spacing, suitable for large-scale buildings; the lap joint of the two ribs is provided with a cavity to block capillary water, which has good rainproof performance; the end is pre-punched with screw holes, and the raw materials are usually 0.53-0.8mm thick, 300 or 350MPa Strength galvanized color-coated steel plate.