PIR Sandwich Panels, Garage Door, Synthetic Resin Roof Tile manufacturer / supplier in China, offering Factory-Price High-Quality Metal Double-Sided Color Steel Fireproof Rock Wool Sandwich Panel, Factory Price PU/PIR/Polyurethane Waterproof Sandwich Panels for Internal and External Wall/Roof, Lion Crown Prefabricated House Polyurethane Sealed Fire Rated Rock Wool Board and so on.