Adopting high-toughness carbon steel integral welding frame with intelligent precision mechanical welding process, the whole vehicle frame achieves outstanding corrosion resistance against acid, alkali and salt erosion under normal temperature environment. After more than 1.5 million professional vibration resistance tests, the frame has 30% higher flexibility and 15% enhanced load-bearing capacity, with a maximum load of 330KG. The original full-face anti-collision guard bar is perfectly integrated with the vehicle body, which not only optimizes the overall aesthetic appearance, but also greatly improves the body anti-collision performance, scratch resistance and riding stability during high-speed travel.