Business scope: electronic products, network equipment, hardware accessories, railway transportation equipment and special equipment and accessories, cast light beacon light bridge municipal lighting equipment, electrical equipment, mechanical equipment, metal products (not including rare metals) production, processing and marketing of electrical engineering, hydraulic engineering equipment and machinery sales, technology import and export of goods (except the projects are prohibited by laws and regulations, project with permits to operate).(for projects subject to approval according to law, business activities may be carried out after approval by relevant departments)