Refrigerated Truck Material:FRP Sandwich PU Foam Temperature:-25 to 0 Light weight, Long lifetime ,Better Insulation Refrigerated TruckThe FRP Sandwich PU Panel now is the best Refrigerated Truck Body Material and the materials is become more and more popular in the Refrigerated Truck Body market. All-close panel, adhesive structure with the type of building block, Freon-free polyurethane ...