The core function of a car shock absorber is to suppress the repeated bouncing of the spring,filter out road bumps and vibrations,improve driving stability and ride comfort,while ensuring that the tires are always on the ground and enhancing handling safety.

The car braking system is the core guarantee of driving safety, which achieves deceleration and parking of the vehicle through friction,stabilizes braking in various road conditions and safeguards driving and riding safety.

The Audi headlight assembly is the core lighting component of the vehicle,integrating functions such as high and low beams, daytime running lights,turn signals etc.It ensures the driving vision at night and in harsh weather,but also enhances the lighting accuracy and technological sense with LED/matrix light sources,combining safety,aesthetics and brand recognition.

The ignition coil is the "voltage multiplier" of a car, which converts 12V low voltage electricity into tens of thousands of volts high voltage electricity,drives the spark plug to ignite,and ensures the normal operation of the engine.