COMAC Beiyan is worth a visit. Because COMAC Beiyan has less work and more money. The fee is 4.5 times that of other centers. COMAC Beiyan is positioned as pre-research, studying advanced technologies in advance and applying them to models. In fact, COMAC has been established for 10 years, and Beiyan has not come up with any technology to use in models. The development of the three major models has nothing to do with Beiyan.