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1. According to the chassis type, it can be divided into two types: road traction and non road traction; according to the box type, it can be divided into ordinary mobile type and mobile silent type;
2. Road traction type adopts standard road chassis. It is equipped with standard tail lamp, traction, steering, braking and parking system
3. Non road traction type adopts non-standard chassis, equipped with traction frame, steering device and manual parking device.