Our independently developed rubber air spring products recently have obtained 10 invention patents issued by the State Intellectual Property Office. The patented technology is one of the few inventions in the field of domestic air spring. In recent years, with the business growing, we continue to increase investment in science and technology. From 2010 to the present, the technology development fund invested reach USD 1,892,720. We also set up the first domestic air spring enterprise R & D center, and introduce a large number of basic equipment for air spring research and development.