... 2, Light weight 3, Easy installation 4, ISO90 EPS concrete sandwich wall panelProduct DescriptionHeat Insulation / Inflaming RetardingThickness: ... : 950mm 980mmLengthAccording to customer' s requestmaterialsPolystyrene foam board(EPS), Color steel sheet,Rock woolStructureUpper and lower layer: ... 75mm 100mm 150mm 200mmdensityRock wool 120-250kg/m3,EPS 12-35kg/m3,PU 35-50kg/m3Conventional colorOcean ...