DF Series Tractors: Synonymous with quality and durability. Dongfeng tractors are the No.1 rated compact tractors in China. They carry the Chinese CAM mark for reliability. All other compact Chinese brands cannot pass the CAM certification. They are now producing dependable low cost compact diesel tractors for the North American market. Unlike other imported tractors the DF Series has been completely redesigned to be used in the North American environment and has a growing support infrastructure surpassing any other Chinese tractor import.