Black 219*26mm Outdoor Co Extruded Great Wall Board WPC Wall Panel is a high-quality building material for outdoor walls. This product is made with a co-extrusion process, where two materials are combined to create a stronger and more durable panel. The outer layer is made of a weather-resistant polymer material, which protects the panel from UV rays, rain, and moisture. The inner layer is made of wood plastic composite (WPC), which is a combination of wood fiber and thermoplastic. This panel is easy to install, requires minimal maintenance, and provides excellent insulation. Our factory produces only the best quality WPC panels, and we stand behind our products with a satisfaction guarantee.