Reflective film,whose reflective rate is normally 90% or more,is rubbing,anti-corrosion anti-aging.The regflective film,which is made of multi-layer aluminum,is so high brightness that the reflected light is blue when back-light  observation.It has the advantage of high-brightness smooth surface,long-term use,not appearing diffuse and anti-high-remperature,which can not be de-aluminized with 100 degree water.It can be used for more than 3 years.