Beijing Longdian Electronic Equipment Co., Ltd. is a large-scale enterprise specializing in research and development, production, sales, and after-sales service.Professional electronic equipment company. Mainly engaged in the production and business of high-tech electronic products such as library automation management systems, self-service borrowing and returning systems, sterilization and disinfection systems, anti-theft detection systems for libraries, etc. Among them, the self-service borrowing and returning system for libraries is particularly welcomed by major public libraries and schools, with positive feedback.