Technology promotion services; Import and export of goods; Technology import and export; Import and export agency; Warehousing services; Sales of machinery and equipment, metal products, Wujijiaodian, fresh fruits, fresh vegetables, ceramic products, solar equipment, furniture, photographic equipment, daily necessities, office Supplies, sporting goods, medical equipment Category I and II, chemical products, textile products, clothing, shoes and hats, household appliances, handicrafts, mechanical and electrical products, building materials, chemical products, kitchen supplies, cosmetics, seedlings, flowers, electronic products, Arts and crafts, automobiles, auto parts, electrical equipment, steel, toys, plastic products, fire-fighting equipment, environmental protection equipment, jewelry; Sales of food. (Market entities independently select business projects and carry out business activities in accordance with the law; Sell food and projects that require approval according to law, and carry out business activities in accordance with the approved content after approval by relevant departments; They are not allowed to engage in projects prohibited or restricted by national and this city's industrial policies business activities. )