Mineral products (except chemical products, coal and sand solid materials prohibited or restricted by the state, province, city and county), handicrafts (except antiques and cultural relics), daily necessities, household appliances, electronic products, hardware, auto parts, computers, software and auxiliary equipment, sporting goods, sanitary ware, lamps, lubricating oil, cigarettes, cigars, fruits, vegetables, etc. Technical research and development, technical development, technical service and technical consultation of hardware and network equipment; Design, produce, act as an agent and publish domestic advertising business; Self-employed and acting as agent for the import and export business of commodities and technologies of the enterprise; Customs declaration agency service.