Zhang yan, represented by a legal person, is registered at room 2672, no. 2799, qingmang township, bong hyun district, shanghai city. It operates in the fields of electrical science and technology, electronics technology, technological development in computer technology, technical advice, technical services, technology transfer, electrical equipment, electrical equipment, machinery equipment and accessories, mechanical and electrical equipment and spare parts, manufacture of controlled equipment, processing (run by a limited branch), wholesale, retail, low-pressure distribution cabinets, instrumentation forms, wholesale distribution of five gold products, retail distribution and integration of computer information systems. [projects subject to legal approval may not operate without the approval of the relevant department]