Hubei Yijiantang Technology Co., Ltd. (formerly known as Wuhan Hainachuan Technology Co., Ltd.), established in 2005, is located in Wuhan, Hubei Province, and is an enterprise focusing on technology promotion and application services. Scope: Licensed items: Class II medical device production; Internet information service for medical devices; Production of medical masks; Production of protective equipment for medical personnel (Class II medical devices); Internet information service.