Distribution switch control equipment, electrical complete sets and accessories, high and low voltage electrical appliances and accessories, bus ducts, cable trays, electromechanical equipment, automated testing equipment, industrial automation control equipment, wires and cables and accessories, plastic products, pneumatic components, explosion-proof electrical appliances, instruments and meters (excluding measuring instruments), R&D, manufacturing, processing and sales of switch buttons, locks and accessories, household appliances, lighting equipment, hardware tools, power hardware, electronic components, auto parts, motorcycle parts, molds, communication equipment, fire-fighting appliances, and security equipment; installation of electrical equipment; import and export of goods, and import and export of technology.