The auto drive shafts is an important component of the automotive transmission system, responsible for transmitting the power of the engine from the gearbox to the drive axle, and then driving the wheels to rotate. It can adapt to the relative position changes between the transmission and the drive axle during vehicle driving, and ensure smooth power transmission through structures such as universal joints and telescopic sleeves. It maintains normal vehicle operation under different road conditions and plays a key role in the overall power performance and driving stability of the vehicle......