... : CE certificate, Energy-saving certificate, Test report gained. 3.Good quality and reasonable XPS-insulation boards, XPS plastic extruded board, ... XPS, Polyfoam extruded polystyrene, Polystyrene foam insulant, Polystyrene board, XPS extrusion board, Foam extrusion plank, Extruded sheet.Key features and ... business relationships and achieving mutual success. polystyrene insulation board(CE approved)