... roof and wall with steel structure. Good Quality, Low cost. EPS Foam Sandwich Panel (expanded polystyrene)Advantages:Light weight, high strength, good water ... (polyurethane), rockwool, glasswool sandwich panel are for your choice.Structural panels consist of an inner rigid insulating core of EPS and two outer ... , 0.326, 0.376, 0.426, 0.476, 0.5mm) EPS foam sandwich panel