As one of the core components of the electric tricycle, the quality of the driving system is directly related to the riding safety of consumers. Fan always believes that product quality is the bottom line of the survival of the enterprise, if the quality cannot be guaranteed, then the enterprise is not necessary to exist. So often do drive system at the beginning of the focus on product quality, high quality as their own product motto. After years of effort, chang yun is no longer willing to talk about quality, because that has been internalized into the development of chang yun genes, without too much emphasis but still inseparable.

Chang yun's strict control of product quality has also been recognized by the whole vehicle enterprise, which has been an excellent supplier of electric tricycles such as step by step first, Kim peng, little bird for many years in a row. Through the visit to the production workshop, we also personally feel the intentions of chang yun in the production process. On clean and neat assembly line, the worker is being engaged in his own job meticulously, quality management personnel passes by them from time to time, the product that discovers problem undertakes recycling processing in time... Over the past ten years, changyun has been persisting in product quality, which makes its leading position in the industry more and more stable.