chassis
chassis refers to a combination of four parts: the drive train, the drive train, the steering train, and the brake train. it supports and installs the car engine and its components and assemblies to form the overall shape of the car. .
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swing arm-凯发k8天生赢家一触即发
the swing arm is also called car suspension. it is an important part in the car. although the part is small, it plays an important role in supporting the vehicle body. it forms a suspension system with the car's shock absorber and spring. the role and precautions of the lower arm of the car are introduced below.