Sandwich Panel, Roofing Sheet, C/Z Purlin manufacturer / supplier in China, offering Thermal/Heat Insulation Waterproof PU/Polyurethane Sandwich Grey Beige Panel for Container/Villa/Factory, Thermal/Heat Insulation Waterproof PU/Polyurethane Sandwich Red Orange Panel for Container/Villa/Factory, Thermal/Heat Insulation Waterproof PU/Polyurethane Sandwich Orange Panel for Container/Villa/Factory and so on.