Mobile phones have become an inseparable companion for people, and they are used almost every day. As the functions of mobile phones gradually increase, people's frequency of using them is also constantly increasing. Therefore, choosing a high-quality protective film for your beloved machine has become a very important thing. And now the number of smart film manufacturers is gradually increasing. Tempered film is almost in a leading position in the protective film industry. Many friends who use mobile phones will ask what types of protective films there are. In fact, there are many types, which can be divided into four materials: PP material, PVC material, and tempered film material. The first two materials are relatively rare on the market now, because their softness cannot protect the screen well and they are not easy to stick. They are not as useful as Apple tempered film, smart film, and explosion-proof film, which are all made of tempered glass and have been processed and tempered by smart film manufacturers. In the protective film market now, the most common type is tempered glass mobile phone film, which is mainly used for tempered film.