Hebei Yuanda Intelligent Manufacturing Co.,Ltd (YDIG) started to engage in the field of trailer and truck maintenance in the 1980s, and had the ability to independently produce trailers in the 1990s. It was officially established in 2007. Today, YDIG has become the largest trailer manufacturer in northern China, mainly engaged in the research and development, production and sales of trailers and trailer accessories. In addition, the company is also a first-level distributor of Dongfeng and Chenglong. Hebei Yuanda Intelligent Manufacturing Co., Ltd. is located in the Economic Development Zone of Yuanshi County, Shijiazhuang City, Hebei Province, China. With a total investment of 150 million US dollars, it covers an area of nearly 300 acres and has 800 employees. It is the largest semi-trailer R&D and production base in North China.

The automation rate of YDIG's trailer production line reaches 95%, and it has its own axle and air spring production line, with an annual output of 20,000 trailers, 30,000 axles and 30,000 air spring systems. In addition, all of YDIG's parts suppliers are from well-known brands, and the core production equipment comes from Japanese, American and European manufacturers, which makes the manufacturing process of YDIG semi-trailers more perfect, longer service life, and saves customers money. Our slogan is: YDIG only produces high-quality semi-trailers.