Sandwich Panel manufacturer / supplier in China, offering Customizable 50mm 70mm PU Steel Interior Wall Panel Solutions Modern for Cold Rooms Workshops Hospitals, New Construction PU Sandwich Panels for Cold Room Roof and Wall EPS and XPS Core Material Sandwich Panels, Waterproof PU Foam Sandwich Wall Panels 50mm Thickness for Outdoor Warehouse Exterior Walls and Roofs EPS Core Material and so on.