sandwich panel sandwich panel Fiber glass sandwich panelIt is a kind of economic building ... factory, boiler room, floors, activity room, factory, refrigeration house, facility room, office-separation, indoor noise-absorption and so on ... 220Kpadensity40-120Kg/m3Water absorption for 24 hours≤5%Polystyrene (EPS) sandwich panelCharacteristics:Light weightLow water absorptionGood warm proof and heat ...