sandwich panel /EPS sandwich panel /eps sandwich wall panel panel thickness:0.2-1.2mm foam thickness:5-20cm factory supply sandwich panel / EPS sandwich panel / eps sandwich wall panel Polystyrene Sandwich panel(also called EPS Sandwich Panel)Polystyrene is self-extinguishing. EPS Sandwich Panel has excellences of light weight(1/20-1/30 of concrete), heat insulation, rapid construction speed( ...