Engage in construction related businesses (engage in business activities within the scope of permission after obtaining relevant administrative permission); Wholesale, retail, installation and maintenance: mechanical equipment, water heating equipment, automatic cooling and heating control equipment, household appliances, central air conditioning, ventilation equipment, smoke exhaust equipment, water treatment equipment, boilers (engage in business activities within the scope of permission after obtaining relevant administrative permission); Engaging in technology development, technology transfer, technology consulting and technology services in the field of network science and technology; Research and development of computer software and hardware; Installation and maintenance of computer auxiliary equipment; Installation and sales of electronic products (excluding electronic publications) and accessories; Network technology services; Enterprise management consulting; Web design and production; Website construction; Computer information system integration service; R&D of smart home products; Sales: building materials (excluding hazardous chemicals), decoration materials (excluding hazardous chemicals), waterproof materials (excluding hazardous chemicals), furniture, hardware, electrical equipment, motors, pump valves, metal materials (excluding rare and precious metals), wires, cables, general merchandise, electrical equipment, curtains, wallpapers, computers and consumables
