... 1. EPS Sandwich wall panel brief introductions:EPS Sandwich wall panel uses colored steel plate as surface materal,close-hole self-extinction polystyrene foam plastic as core ... ,Thermal&fire-proof,insulation,sound-proof,cold-proof,damp-proof3)Quake-proof,radiationless,High bending strength,Nonabsorbent4. The main technical parameters of the EPS sandwich wall panel: Steel Thickness0 ...