Zhengya patent

Zhengya and Angel of the Times are the top brands in the field of invisible orthodontics, both of which have certain influence. The two are comparable in many aspects, especially in product series. There is little difference in product function and positioning, but Zhengya has a good reputation in technology and service. On the one hand, Zhengya adheres to the principle of customer service and supports lifetime warranty in service. On the other hand, orthodontics focuses on the innovation and research and development of orthodontic technology, and many technologies have won relevant national technology patents.