In the projector business, it can also provide one-stop service for the design, installation and debugging of projection projects, which is widely used by various users including the Great Hall of the People in China. In terms of independent brands, Beijing Daheng Innovation Technology Co., Ltd. has launched a series of "Woodpecker" products, including optical and magnetic products (burners, CDs), etc., ranking among the top three domestic brands. In terms of application system and system integration, Beijing Daheng Innovation Technology Co., Ltd. mainly provides professional industry informatization solutions and services for enterprises, education and government agencies, focusing on strengthening the development and integration services of professional solutions. In R&D and production, we focus on the development and production of data storage products, digital monitoring products and professional technologies such as network security, GPS and geographic information (GIS). At the same time, we will develop application systems and solutions closely related to industry informatization for education, government, enterprises, military, finance, public security, transportation, medical care and other industries. As a professional application system and system integration service provider, we have obtained the first-class qualification of computer information system integration issued by the Ministry of Information Industry and the qualification of computer information system integration graded by the State Secrecy Bureau. At the same time, over the years, we have maintained good cooperative relations with many famous IT and communication manufacturers in the world. "Industry-oriented, professional-oriented", we will continue to provide professional solutions and services for industry informatization.