1. SHANGHAI diesel Engine Power stable and strong with small noisy. 2. The rear wheel is rigidity joining type and the front wheel is mechanical hang-way type, which can ensure that the turning tires can land evenly and sustain the road rollers by 3-points... 3. The tires are 16 layers pneumatic tires, safe and wear-resisting. With centralized pneumatic system the pneumatic pressure of tires can sdjust any time...