ZTZN is mainly engaged in the promotion and application of technology. Its business scope includes the wholesale and retail of computer software and hardware and auxiliary equipment, technical services, technical development, technical consultation, technical exchange, technical transfer and technical promotion, and engages in the import and export of technology and goods. The company focuses on technological innovation and has obtained several patents, such as the patent for a low - altitude residential oxygen - supply system, which can effectively alleviate altitude sickness.