A high-quality automobile wiper arm needs to have the following characteristics:

1. Durability: The wiper arm of an automobile needs to have good durability, can withstand long-term use and frequent friction, and is not easy to wear or break. The durable wiper arm can maintain a good cleaning effect and ensure the driver's vision is clear.

2. Corrosion resistance: The automobile wiper arm needs to have good corrosion resistance, which can resist the corrosion of the rain wiper arm by moisture, rain and chemicals in the external environment and maintain the appearance and performance of the wiper arm.

3. Strength and stability: The wiper arm of an automobile needs to have sufficient strength and stability, can bear the workload and vibration of the wiper, and keep the stability and effect of the wiper at work.

4. Adaptability: The wiper arm of an automobile needs to have good adaptability and can be perfectly matched with the wiper system of the vehicle to ensure that the wiper arm can work normally and cooperate well with the wiper blade to provide effective cleaning effect.

5. Operability: The automobile wiper arm needs to have good operability, which is convenient for the driver to operate and adjust the angle and speed of the wiper arm to meet the cleaning needs under different weather and road conditions.

6. Silence: A high-quality automobile wiper arm needs to have good silence performance, which can produce low noise at work and improve driving comfort.

To sum up, a high-quality automobile wiper arm needs many characteristics such as durability, corrosion resistance, strength and stability, adaptability, operability and quietness, so as to ensure the normal operation of the wiper system and the driver's safe driving experience. These characteristics will help to improve the wiper effect, keep the driver's vision clear and improve driving safety.