Zhengzhou Shenglong Information Technology Co., Ltd. (stock code: 831361), founded in 2003, is a professional high-tech industry company integrating the research and development, production, sales and service of two-dimensional/three-dimensional micro-array rear projection, 3D stereoscopic large screen, 3D virtual simulation platform, intelligent optoelectronic display equipment, data engineering, software development and other software and hardware products. The company's products are widely used in military, education, medical, municipal, finance, entertainment, civil defense, advertising and other industries.