It was also an 18-year design. I remember that the company received the design project from LG of South Korea at that time. Then a key point of the customer's demand was to jump over the curb. Then I made a high chassis and crawler design, and then integrated the front and rear double-headed and two-sided door opening design of the high-speed rail, which was convenient to turn around in a narrow space and could also meet the needs of meals on both sides.