The 3-wall W-type structure lock design system is an advanced sheet application system that combines strength, weather resistance, light transmission, and thermal insulation. Featuring a waterproof design, this system can withstand high loads while providing excellent natural lighting. Its simple installation process makes it suitable for a variety of roofing applications, including both flat and curved roofs. The sheets are available in four thicknesses: 8mm, 10mm, 12mm, and 16mm.