... , Insulation board are usually used in cold storage, cold room, freezing room project construction, it heat insulaiton, fireproof, waterproof, it is ... milk white painted steel, stainless steel or hot galvanized steel for option.2) PU density: 38~40 kg/m3, 40 ... storage panel products, polyurethane sandwich panel, cold room sandwich panel,PU panel for cold storage" />