... 97%. This is a brand new environmentally-friendly heat insulation material which is soft, light and easy to install. It ... through sheet iron, concrete, wood and other common heat insulation material. Specification1 x 50m each roll,can be customizedFoam thickness ... dust free, easy to install;3.Heat reflection, heat insulation, sound insulation, anti-radiation, anti-vibration, and shielding;4.Moisture ...