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