Manufacturing and sales of exhibition cabinets, furniture and lighting appliances, wholesale and retail of building decoration materials, hardware products, household appliances and stationery; Advertising production, advertising design, agency service, manufacturing of special equipment for commerce, catering and service; Furniture installation and maintenance services, residential interior decoration; Technical service, technical development and technical consultation; Construction engineering construction (excluding nuclear power plant construction and operation and civil airport construction). (Projects that must be approved according to law can only be operated after being approved by relevant departments)