... could be widely used in exterior wall and partition of villas, residential houses, workshops, cold storages, security lodges ... Quake-proof,radiationless,High bending strength,Nonabsorbent4. The main technical parameters of the EPS sandwich wall panel: Steel Thickness0.23~ ... by oneFilm covering in order to protect the steel of panelslifetime15~20 yearsCharacterLight in weight, heat insulation, fireproof ...