Airbag hairspring has the following characteristics:

1. High strength: Airbag hairspring is usually made of high-strength materials, such as high-strength steel wire or special alloy materials. These materials have excellent tensile strength and fatigue resistance, and can withstand the tensile force and impact force when inflated at high pressure.

2. Lightweight: In order to reduce the overall weight of the vehicle, the airbag hairspring is usually made of lightweight materials, such as high-strength steel wire or light alloy material. This enables the airbag hairspring to provide strength and rigidity while reducing the burden on the overall weight of the vehicle.

3. Elasticity: The air bag hairspring has certain elasticity, which can be quickly deployed and form a protective barrier when a collision occurs. It can absorb and disperse collision energy, reduce the impact force on passengers and provide better protection effect.

4. Corrosion resistance: As the air bag hairspring is exposed to the external environment of the vehicle, it needs to have good corrosion resistance. This can ensure that the airbag hairspring will not be eroded by the external environment in long-term use, and maintain its performance and reliability.

5. Flexibility: The airbag hairspring needs to have certain flexibility to meet the installation requirements of different models and vehicle parts. It can be bent, folded and fixed according to the design and space limitation of the vehicle to ensure that it can be unfolded correctly and provide effective protection when inflated.

In a word, the airbag hairspring has the characteristics of high strength, light weight, elasticity, corrosion resistance and flexibility. These characteristics enable the airbag hairspring to deploy quickly and provide effective protection when a collision occurs, ensuring the maximum safety protection of passengers in the collision.