Retail of hardware products; Wholesale of shoes and hats; Retail of shoes and hats; Sales of electronic products; Luggage sales; Furniture sales; Wholesale of hardware products; Wholesale of daily necessities; Sales of mechanical equipment; Sales of mechanical parts and components; Sales of building decoration materials; Sales of office supplies; Information consulting services (excluding licensed information consulting services); Information technology consulting services; Sales of bearings, gears, and transmission components; Wholesale of clothing and apparel; Home goods sales; Toy sales; Sales of metal materials; Wholesale of stationery supplies; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; ; Import and export of goods; Technology import and export