^{Zhengzhou Shenglong Information Technology Co., LTD. (Stock code :831361), founded in 2003, is a professional high-tech industrial company integrating R&D, production, sales and service of hardware and software products such as 2D / 3D microarray rear projection, 3D stereoscopic large screen, 3D virtual simulation platform, intelligent optoelectronic display equipment, data engineering and software development . The company's products are widely used in military, education, medical, municipal, financial, entertainment, civil air defense, advertising and other industries.}

_{Zhengzhou Shenglong Information Technology Co., Ltd. keeps improving on quality and has successively passed the following qualification certification: FCC certification, EU CE, EU ROHS and other national patents, China National CCC certification, ISO/IEC 27001 Information Security Management system certification, GJB9001C-2017 Weapons and equipment quality management system certification, ISO9001 quality management system certification, ISO14001 environmental management system certification, IS045001 professional health Tang management system certification, GB/T27922-2011 after-sales service certification, National high-tech enterprise certification, high-tech product certificate (full color L ED display system), software enterprise certification, China Optical Optoelectronics Association display Branch Council member certificate, Henan Province electronic product quality inspection report and other certificates.}