The business scope includes: sales of electrical equipment; Manufacturing of electrical signal equipment devices; Sales of electrical signal equipment devices; Sales of distribution switch control equipment; Sales of electrical instruments and meters; Electronic product sales; Wholesale of electronic components; Retail of electronic components; Sales of capacitors and their supporting equipment; Sales of mechanical and electrical equipment; Manufacturing of mechanical and electrical equipment; Sales of power electronic components; Sales of integrated circuit chips and products; Sales of electronic components and electromechanical equipment.