How to choose film of car heat insolation

How to ensure quality, can examine have the guarantee of quality that does not have manufacturer, the manufacturer that produces car film at present can consult on the net Www.iwfa.com test and verify, the whole world is only 7. Of manufacturer protect cartoon to often be included character keep credit of project, fixed number of year, compensate character type and true but target-seeking manufacturer name, address and phone; Check a form code especially, because normal plant family property tastes packet of mount,certainly a form is piled up.