Why not make CVT gearbox steel belt in China?

At present, there are many automobile brands in China, but only one company in Wan Liyang completely produces CVT transmissions and steel belts. This is not because other companies don't want to do it, but because they have difficulties. The first CVT independently developed by China was successfully rolled off the assembly line by Chery Automobile Co., Ltd. in April 10. Compared with foreign countries, Chery's CVT transmission can reduce the cost by 50%, so it can definitely be done, and the quality is not bad. So why do domestic brands seldom do it themselves? There must be a reason. Let's move on. First of all, we need to know the history and development of CVT. The original continuously variable transmission (CVT) was invented by Dutch Van Dorn. It is not a mature manual and automatic gearbox, but a perfect work through the interaction of many gears. German Mercedes-Benz Company is the originator of adopting CVT technology in automobiles. At present, CVT has been considered as one of the mainstream development directions in the future. However, CVT steel belt is not any steel belt in the ordinary sense, but a special steel belt that can withstand specific pressure. Secondly, making CVT steel belt by yourself is not only a matter of cost and industrial chain, but also an issue of intellectual property rights. At present, under the condition that the industrial chain of CVT transmission is relatively mature, the self-designed steel belt and chain can not match the existing mature products. The intellectual property of CVT steel belt or chain is mainly in the hands of Bosch and Schaeffler in Germany, but the production of steel belt and chain must be approved, and each steel belt needs to pay part of the profits to these two companies. This cost may be 30% or more of the profit, so it is more economical to use ready-made products than to develop and produce them yourself. To sum up, even if it is a simple product, every part has a high technical content. If you want to do it yourself, you must solve all kinds of obstacles. Although only Chery can produce CVT transmissions and accessories in China, with the continuous improvement of national scientific and technological strength, we believe that we can develop better products and have independent intellectual property rights. It takes courage and persistence to try. I believe that without the spirit of our nation, we will be able to overcome all kinds of difficulties and build better automobile products.