Wholesale and retail: vegetables, baby products, cosmetics, toys, daily necessities, household appliances, needle textiles, stationery, clothing, shoes and hats, sports goods, leather products, food, handicrafts, electronic products, computers, software and auxiliary equipment, hardware and electrical, construction, metal materials, mechanical equipment, wood, steel, building materials, lighting equipment, wooden products, stainless steel products, mineral products, wires and cables Medical devices, cultural products, environmentally friendly materials, environmentally friendly equipment, jewelry and jade; Import and export of goods and technology (excluding projects prohibited by laws and administrative regulations, and projects restricted by laws and administrative regulations can only be operated after obtaining licenses). (Projects that require approval according to law can only be operated after approval by relevant departments)