Nanjing Derui Information Technology Co., Ltd. Was established on September 25, 2019. Its business scope includes technology development, technology consulting, technology transfer and technology services of computer information; R&D and sales of mechanical equipment and electrical equipment; Sales of software and hardware of electronic and communication products; Sales of mechanical and electrical products, optical fiber cables, distribution boxes (cabinets) and office supplies; Internet of Things technology development; Power engineering construction; Technical consultation, technical service and technology transfer of electrical appliances, communication equipment and computer software. Graphic design and production; Design, produce, act as agent and release various domestic advertisements.