我厂自行研制的CYT220型轮式牵引机是属于国内首创较大型工程机械。在吸收了国内外同类产品优点的基础上，外观和结构上都进行了较大的改进，尤其在整机的结构布局上做了进一步的优化。该机经国家工程机械质量监督检验中心试验、检测和吉林油田十几家采油场近两年的工业性试验 CYT220 wheeled traction machine developed by our factory belongs to the first large-scale construction machinery in China. In the absorption of the advantages of similar products at home and abroad on the basis of both the appearance and structure of the major improvements have been made, especially in the structure of the machine made a further optimization. The machine by the National Engineering Machinery Quality Supervision and Inspection Center test, testing and Jilin Oil Field more than a dozen oil field nearly two years of industrial test