No one can stop the passage of time, science and technology level of life bring earth-shaking change, this is very obvious in the synchronous belt wheel industry, the product could improve the production efficiency in the application. Synchronous belt is the current round of industry development in a period, the most significant in developing nature also encountered many problems, but the development of the breakthrough has got great development, and technology greatly motivated technical role in this process. And specific values are embodied in these aspects: first, the economic system change. Economic development is relatively single, this is very bad for the industry development, this basically is the relatively small market, products can't enter into the foreign market sales. But with the economic development, its the phenomenon gradually improved. Second, the trend of change. Previous industry simply by increasing the number of opportunities for development, not by their own strength to development. Along with economic development, now the development of the synchronous belt wheel industry strength gradually improved, growth methods have been changed to use technology to improve to promote development. The process also to a lot of problems. In general, the synchronous belt wheel industry now is in a rapid development stage, if development success, the industry in the future will have a breakthrough in the development of change.