1. Structure: We adopt high quality armor plate, steel tube, square steel and all metal jointing structure.
2. Dealing with the surface: Adopt the spray-paint technics, which is same as the car making.
3. Seats: Front seat for two person, backseat for two to four person. Main seat adopt the tegument-made sofa which could be adjusted, subsidiary seats and backseats are all fixed by tegument-made sofa.
4. Turnaround: Adopt special plane axletree(called turnplate) as the turnaround system.[...]