Technical development, technical services and sales of computer software and hardware; sales and technical services of scanners and printers; information consultation (excluding restricted items); engaging in advertising business (if laws, regulations and the State Council stipulate that separate advertising business approval is required, a license is required before operating); household appliances, mechanical equipment, Wujinjiaodian, cultural supplies, cosmetics, sporting goods, knitted textiles, clothing, shoes and hats , sales of daily necessities, furniture, handicrafts (excluding ivory and its products), watches, glasses (excluding contact lenses), auto parts, motorcycle parts, instruments and meters, communication equipment, electronic products, toys, photographic equipment, plastic products, metal products (excluding precious metals), and ceramic products; domestic trade, import and export business (excluding specialized, controlled, and specialty goods); machinery and equipment leasing. (The above items are except for items prohibited by laws, administrative regulations, and State Council decisions. Restricted items must obtain a license before they can be operated) Sales of power electronic components; sales of integrated circuit chips and products; sales of electronic products; retail of computer software, hardware, and auxiliary equipment; wholesale of computer software, hardware, and auxiliary equipment. Value-added telecommunications services.