Food sales; Sale: agricultural and sideline products, aquatic products, Mechanical and electrical products, Plants and flowers, Plastic raw materials and products, Electronic products and accessories, Chemical raw materials and products( Except for hazardous chemicals), Metal products and materials, Mineral Products, Wood and wood products, clothing, textile, Daily necessities, Hardware and Electrical, furniture, kitchenware, lamps, accessories, Shoes and hats, cosmetic, Building Materials, Packaging materials, Packaging products, auto parts; Import and export of goods、 Technology import and export。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)