Daily necessities, clothing, leather products, shoes and hats, washing supplies, cosmetics, photographic equipment, toys, audio equipment, stationery, office supplies, packaging materials, arts and crafts products, chemical raw materials (excluding hazardous chemicals), chemical products (excluding hazardous chemicals), hardware products, electronic products, communication equipment, instruments and meters, electromechanical equipment and accessories, mechanical equipment and accessories Sales of computer software and hardware and peripheral auxiliary equipment, food, rubber products, plastic products, metal products (excluding rare and precious metals), building materials, decorative materials (excluding hazardous chemicals), hotel equipment and furniture. (Projects that must be approved according to law can only be operated after being approved by relevant departments)