Business scope: including general business items: technical development and sales of electronic products, computer software and hardware, communication products and test equipment; Design, on-site installation and sales of computers, intelligent management systems, electromechanical products and traffic management products; Design and construction of anti-theft alarm system, security TV monitoring system, building anti-theft electronic intercom system, access control system, patrol system engineering, etc.

Address: No.69-7 Hutian Road, No.69 Hutian Road, Pingdi Community, Pingdi Street, Longgang District, Shenzhen

2. Beijing Sheng Hui Ye Jia Electronic Technology Co., Ltd.

The business scope includes scientific and technological development, transfer, consultation and service; Sales of electronic products, mechanical and electrical equipment, transportation facilities, parking equipment, fire fighting equipment, metal products, solar equipment, arts and crafts, daily necessities, office supplies, doors and windows, security equipment; Catering management; Maintenance of construction machinery and equipment; Production sentry box, gate, lifting column, security equipment, professional contracting, etc.

Address: Room 508, Floor 5, Building KLOC-0/9, No.9 Courtyard, Tianhua Street, Daxing District, Beijing

3. Qingdao Jingcheng Instrument Co., Ltd..

The business scope includes general items: sales of environmental emergency detection instruments, manufacturing of special equipment for environmental protection, instrument manufacturing, sales of special equipment for environmental protection, sales of experimental analysis instruments, manufacturing of air pollution monitoring and detection instruments, sales of water pollution monitoring and detection instruments, sales of intelligent instruments and manufacturing of experimental analysis instruments.

Address: Block B, Jinhainiu Energy and Environment Industrial Park, Licang District, Qingdao, Shandong Province 140 1

4. Shanxi ShuangRong Sheng Electromechanical Equipment Co., Ltd..

The business scope includes the design, sales and installation of doors and windows, prefabricated houses, wrought iron products, access control system equipment, flagpoles, sentry boxes, retractable doors, gates, railings, fences, lamp posts and traffic facilities; Sales of stainless steel products and mobile toilets.

Address: Area C, 20th floor, Block B, Jinmao Building, Pingyang Road, xiaodian district, Taiyuan, Shanxi.

5. Shanghai Gu Feng Medical Equipment Co., Ltd.

The business scope includes the manufacture, processing (limited to branches), wholesale and retail of medical instruments, valves, mechanical equipment and accessories, and technical development, technical consultation, technical service and technology transfer in the fields of medical technology, hardware and electrical appliances, stainless steel products, electromechanical equipment, automation equipment, ventilation equipment, electronic products, industrial product design and computer software development.

Address: Room 1338- 1 South Huancheng Road, nanqiao town, Fengxian District, Shanghai.