Sales of hardware products, mechanical parts, electronic components, optoelectronic devices, metal accessories for construction, doors and windows, fans, fans, power distribution switch control equipment; Sales of apparel, shoes and hats, clothing accessories, needle textiles, and industrial textile products; Sales of daily necessities, sundries, kitchenware and sanitary ware, tea sets, household appliances, stationery, toys, household items, office equipment, amusement and entertainment products; Sales of arts and crafts and collectibles (except cultural relics, ivory and their products); Works of art Sales (excluding ivory and its products); Sales of computer software and hardware and auxiliary equipment, household audio-visual equipment, electrical accessories, integrated circuit chips and products, information security equipment, calculator equipment, Internet equipment, and network equipment; Electronic products, Sales of wires, cables, electrical equipment, Internet of Things equipment, and cloud computing equipment; E-commerce operations; Import and export of goods and technologies. (Except items prohibited by laws and administrative regulations