Automobile Solar Film: Dragon Film, 3M, Gu Wei and Ray-Ban, which is better?

Dragon movies. 3M, Ray-Ban may compare with Viagra. This is a joke. Those businessmen are boastful and have no conscience. The domestic dragon film products are different from those in the United States and have the same name, but the domestic dragon film products are mainly based on the bottom technology, and the world output blows all day, but why is it not clear that you are the world's largest producer of dyed films, and the market positioning of CPF (the producer of dragon film) is OEM? Most products are made for other brands. Car film is also a kind of window film. Now the highest manufacturing process of window film is magnetron sputtering technology. The production and sales volume of the world's top-end window film is the first, Bekaert Special Coatings Company, and in the World Window Film Association, others are the boss, and you only rank second. Ray-Ban is a domestic brand product, not an international brand. What you don't believe is Baidu Encyclopedia, and then search for the word Ray-Ban. What comes out is someone else's American Ray-Ban Sun eye, which has nothing to do with the familiar Ray-Ban car film. Ray-Ban car film was originally produced by some small dye film manufacturers in Taiwan Province Province. Now some of Ray-Ban's products are made of CPF, and some don't know which hole they are drilled from. Don't think that the name is enlarged, the pheasant becomes a phoenix, the root remains the same, and the goods are still those goods. Ge Wei is a brand registered by GMX Company in Singapore. Market positioning is high-end, mainly metal film. However, only the V-series is considered as the top product, and only the top front gear V70 is produced by American Guohua Shao Company. I can't see that Gu Wei is a good product. If you choose other low-end series, you may not even be as good as 3M and Ray-Ban.