Sandwich Panel, Roofing Sheet, C/Z Purlin manufacturer / supplier in China, offering 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, Anti-Corrosion Coating for PU Sandwich Panel Used in and so on.