In long-term cooperation with the Ministry of Transportation Scientific Research Institute, Changan University Highway Engineering School, Changsha University of Science and Technology, we have developed the HYCZ series of automatic rutting testers, HYXY series of rotary compaction testers, HYCX series of rutting specimen molding machines, HYRS series of combustion asphalt content testers, which have been used by the above units for a long time and have a stable quality to meet the requirements of production and scientific research. Our company cooperated with the Academy of Science and Research of the Ministry of Transportation, and jointly drafted and prepared the rutting tester (JTG E20-2011) and combustion asphalt content tester (JTG E20-2011) of the People's Republic of China transportation industry standards, which have passed the approval of the National Standards Committee.