... 2)Waterproof, fireproof, soundproof, 3)light weight wall board 4)Heat Insulation 5)Fast construction Description:Light weight energy-saving EPS Sandwich wall PanelComposition ... thick 37db 40db 42db 44db 46db2013* light weight,waterproof,soundproof,heat insulation eps sandwich panel 2013* light weight,waterproof,soundproof,heat insulation eps sandwich ...