1, implementation of the new national six emission standards: 20 1 July 91day, China's new national six emission standards were officially implemented, which led many used car owners to sell their old cars and buy new ones that met the national six standards. Therefore, in September, the price of second-hand trucks that meet the national six standards may be higher, and the price of second-hand trucks that do not meet the national six standards may be lower.

2. Economic situation: 20 19 is a year of great downward pressure on China's economy. In this case, many enterprises choose to reduce costs and may sell some unnecessary vehicles, resulting in a large supply of second-hand trucks in the market and relatively low prices.

3. Geographical factors: The market situation of second-hand trucks varies greatly in different regions. For example, in some cities with heavy traffic, the price of second-hand trucks may be higher, while in cities with good traffic conditions, the price of second-hand trucks may be lower.

4. Car condition: Car condition is an important factor affecting the price of second-hand trucks. The price of second-hand trucks with the same age and mileage may be much higher than that of poor cars.