What is the difference between Volkswagen Type I, II, and III films?

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The difference between Volkswagen Type I, II, and III films lies in the different positions where the car films are applied. Applying films to cars serves several purposes as follows: Heat insulation: In winter, it can reduce the loss of heat from the car interior, while in summer, it can minimize the entry of external heat into the car, thereby slowing down the rapid rise in interior temperature. Anti-explosion function: When the glass is subjected to external impact, the shattered glass will adhere to the film, preventing broken glass from falling and harming passengers, thereby enhancing safety performance. Additionally, it can reduce the amount of ultraviolet rays entering the car, slowing down the aging of the vehicle's interior and protecting the skin of passengers from damage.