We are a factory that produces high-quality {LQ PVC Single/Multi Layer Heat Insulation Corrugated Board & Step-Roofing Extrusion Line}. Our product is perfect for roofing and insulation purposes. It is made of high-quality PVC materials, making it durable and resistant to harsh weather conditions. Our product is available in both single and multi-layer options, allowing you to choose one that suits your needs best. Our corrugated board and step-roofing extrusion line is easy to install and will provide excellent insulation for your buildings, thus reducing energy costs and making your space more comfortable. With our product, you can be sure of seamless roofing and efficient insulation, giving you value for your money.