Import and export of goods or technology; computers, software and auxiliary equipment, decorative items, kitchenware and sanitary utensils and daily sundries, furniture, handicrafts (except ivory and its products), interior decoration materials (excluding hazardous chemicals), packaging materials, audio Equipment, rubber products, clothing, shoes and hats, electronic products, mechanical equipment, medical equipment sales and Internet retail; Internet information services; comprehensive foreign trade services; Internet of Things technical services; machinery and equipment business leasing; electronic components sales and leasing; interior decoration Design services; public building decoration and decoration; residential decoration and decoration; building curtain wall decoration and decoration.