Cn is a brand of China National Heavy Duty Truck Group. China National Heavy Duty Truck Group Co., Ltd. (hereinafter referred to as "China Heavy Duty Truck"), formerly known as Jinan Automobile Manufacturing General Factory, was founded in 1956. It is the cradle of heavy truck industry in China, and now it is one of the key enterprises directly under SASAC of Jinan Municipal People's Government. 1960, China heavy duty truck produced the first heavy truck in China, Huanghe JN 150 eight-ton truck. 1983 successfully introduced the Steyr heavy truck project in Austria, which is the first enterprise in China to fully introduce foreign heavy truck manufacturing technology. In 2007, China Heavy Duty Truck was listed on the main board of Hongkong, and an international platform was initially established. In 2009, the company successfully reached a strategic cooperation with German man Company, which holds 25% shares of China Heavy Duty Truck (HK) Co., Ltd., and China Heavy Duty Truck imported three engines, medium and heavy truck axles and corresponding vehicle technology from MAN Company, which laid a solid foundation for the company's long-term development. At present, China Heavy Duty Truck has become the largest heavy-duty truck production base in China, which has made outstanding contributions to the development of heavy-duty truck industry and national economic construction in China. Cn brand came into being in this context, aiming at providing excellent products and services for customers in China and even the world.