Kunming Liu Yun reliable technology co., ltd. According to relevant information, the company's registered trademark, industrial and commercial department certification and business license are reliable. Company's business scope: software development; Information technology consulting services; Technical service, technical development, technical consultation, technical exchange, technology transfer and technology popularization; Network and information security software development; Information consulting services (excluding licensed information consulting services); Sales agent; Sales of daily necessities; Daily necessities sales; Internet sales (except for the sale of goods that need permission); Office supplies sales; Stationery supplies retail; Outdoor products sales; Retail of sporting goods and equipment; Wholesale of sporting goods and equipment; Sales of household audio-visual equipment; Sales of spare parts for household appliances; Sales of first-class medical devices; Sales of glass fiber and products; Sales of household appliances; Sales of plastic products (except for projects subject to approval according to law, independent business activities shall be carried out according to law with business licenses).