... 3.Functions: fresh-keeping, freez Cold Room Cold Room Warehouse Sandwich Panel Ⅰ.About cold room specification: Temperature range: -60°C to +20 ... 220V, Single phase or triphase, 50Hz or 60Hz.Ⅱ.Cold room panel, size, and temperature: ThicknessSuitable temperature505°C or above75-5°C ... 8°C or aboveV.Cold room pictures: cold room warehouse sandwich panel PU insulation