... EPS Sandwich Panel WallMaterial: Color coated, galvanized, hot galvanized, and stainless steel panel. Panel thickness: 0.2-0.8mm for external/internal steel panel. EPS sandwich panel ... structure, workshop, warehouse, prebab house.1 Brief induction:Sandwich Panel is composed by three layers, up and lower steel ... and damp resistantFire,Water ProofFast, EasyGood appearence sandwich-panel-production-line