General business items: online equipment for mobile phones and their accessories, computers and their hardware, electronic products, digital products, communication equipment, mechanical and electrical products and equipment, building materials (except dangerous goods), decoration materials, replacement, instrumentation, smart terminal products, Household appliances, Wujinjiaodian, photographic equipment, fitness equipment, audio equipment, auto and motorcycle accessories, wires and cables, instrumentation, daily necessities, daily chemical products, disinfection products, cultural and sports products, ceramic products, plastic products, furniture , Sanitary ware, environmental protection products, textiles, leather products, labor protection supplies, protective supplies, packaging materials, office supplies and craft gifts (excluding ivory and its products), toys, luggage, clothing, shoes and hats, down products, bedding , Cosmetics, accessories, primary agricultural products, livestock and poultry raw meat, dairy products, aquatic products, first- and second-class medical equipment sales; online military business information consulting services; Internet technical consulting, technical services; import and export of goods and technologies, etc.