Technology development, technical services, technology transfer, technology consulting (excluding intermediaries), and technology promotion; Application software services; Software development; Computer system services; Computer system integration; Web design; Enterprise management consulting (excluding intermediaries); Translation services; Rental of stage lighting and audio equipment; Selling electronic products, office supplies, hardware and electrical appliances (excluding electric bicycles), mechanical equipment, computer software and hardware and auxiliary equipment, rubber products, glass products, laboratory equipment, photography equipment, photography equipment, biological agents (excluding drugs), chemical reagents (excluding hazardous chemicals); Internet information services (market entities shall independently choose business projects and carry out business activities in accordance with the law; Internet information services and projects that require approval in accordance with the law shall carry out business activities in accordance with the approved content after being approved by relevant departments; And shall not engage in business activities prohibited or restricted by national and local industrial policies)