... skin + XPS (extrude polystyrene foam) + FRP skinProduct descriptionFiberglass Reinforced Plastic (FRP) sheet as surface panel at both sides, ... box, freezer box, chiller box, dry goods box, large-span structure roofing, wall surface, heat preservation, heat ... refrigerator, container house and so on. XPS Foam Reinforced FRP Composite Panel for Hatchery JINYI Composite Materials--------professional ...