1.Polyurethane insulation sandwich panel 2.Cold storage room 2. PU panel room 3. CE 4.Temperature: -5 --40 1. Core material of ... . Functions: fresh-keeping, freezing, quick-freezing, fire-proof, explosion-proof, air-conditioning are all available. 7.Refrigeration: R22, R404A, Polyol Secondary Refrigerant8 ... , Junction Box10.Brand Compendents: Danfoss, Alco, Castol, stailess steel cold storage room