The necessity of spraying door handles is mainly reflected in the following aspects:
1. **Protective**: Spraying can provide a protective film for door handles to prevent scratches and wear in daily use. For example, during the use of car door handles, hard objects such as nails may scratch the car paint, resulting in scratches.
2. **Decorative**: Spraying can not only protect door handles, but also enhance their appearance. Through spraying, door handles can present a more beautiful appearance and enhance the overall visual effect of the vehicle.
3. **Corrosion resistance**: Door handle spraying also has an anti-corrosion effect. Through spraying, the door handles can be prevented from rusting or corroding due to long-term exposure to the air.
4. **Sense of technology**: For new energy vehicles, the design of hidden door handles not only increases the sense of technology, but also reduces wind resistance and improves the driving performance and endurance of the vehicle. Although hidden door handles may pose safety hazards in some cases, through reasonable design and improvement, both beauty and practicality can be taken into account.
In summary, spraying door handles can not only enhance their appearance and protection, but also improve the overall performance and safety of the vehicle to a certain extent.