High and low side door opening flower railing semi-trailer
In the future, semi trailers will be more compliant. In addition to the overall dimensions of the semi-trailer, the load capacity is more compliant, and the chassis configuration is also more standardized. According to the new regulation GB7258, starting from January 1, 2020, three axle rail type and compartment type semi trailers must be equipped with disc brakes, and dangerous goods transport vehicles must use disc brakes one year in advance. The new regulations have given car companies and drivers two years as a buffer, indicating that trailer chassis accessories will become more compliant in the future. In addition, GB7258 also stipulates that in the future, models such as three axle rail type and compartment type semi trailers will use airbag suspension. The use of airbag suspension on semi-trailer can improve the shock absorption effect of the vehicle. In addition, when the vehicle is unloaded, the trailer axle can be raised to reduce the friction between the tires and the ground, lower the fuel consumption of the vehicle, and improve fuel economy.
