2. Semi-trailer owned by Shandong National Heavy Duty Truck Co., Ltd.: Formerly a subsidiary of China National Heavy Duty Truck Group, it is also a large enterprise in Shandong, with an old brand, good product performance and many vehicle specifications. However, after the engine incident in 2006, the sales volume was far less than before. But the market share is still very large.
3. Semi-trailer owned by Sichuan Automobile Co., Ltd.: At present, it is a subsidiary of China Heavy Duty Truck Group, and its products are well received by people in southwest China, but its sales in other regions are not optimistic.
4. Fukuda's semi-trailer: It started with agricultural vehicles and developed rapidly, but it didn't take long to manufacture heavy trucks. Its products are proud of their beauty, and the cab has a robot map (much like Transformers), so the driving comfort is not bad.
Classification and characteristics of semi-trailer
1. Semi-trailer refers to a trailer whose axle is placed behind the center of gravity of the vehicle (when the vehicle is uniformly loaded) and is equipped with a coupling device that can transmit horizontal and vertical forces to the tractor.
2. Semi-trailers are generally three-axle semi-trailers, which are divided into eleven-meter barn semi-trailers, thirteen-meter barn semi-trailers, low-level semi-trailers and other types. It is a heavy transport vehicle connected with the front of a semi-trailer through a traction pin.
3. Compared with "integral" cars, semi-trailers can improve the comprehensive economic benefits of road transportation. The transportation efficiency can be improved by 30-50%, the cost can be reduced by 30-40%, and the fuel consumption can be reduced by 20-30%. More importantly, the use of semi-trailers can also promote the organizational form of logistics in China to a certain extent.