... 40M Length This is a new environmentally-friendly heat insulation material ,Which is soft,litht and easy to ... and sudden cold,etc.Characteristics:ight,soft,dustfree,fire,retardant,easy to install; Heat reflection,heat insulation,sound insulation,anti-radiation ... heatpreservation,energy saving…; Summer:moisture barrier,sun-proof,heat insulation,saving energy consumed by cool air conditioning; Winter: ...