Manufacturing of intelligent instruments and meters; import and export of goods; manufacturing of industrial automatic control system devices; sales of industrial automatic control system devices; manufacturing of liquid and gas tight components and systems; sales of liquid and gas tight components and systems; manufacturing of power electronic components; retail of electronic components; manufacturing of hardware products; manufacturing of auto parts and accessories ; Auto parts retail; Motorcycle parts manufacturing; Motorcycle and spare parts retail; CNC machine tool sales; Drawing, calculation and measuring instrument sales; Metal material sales; Power electronic component sales; Electrical equipment repair; General equipment repair; General mechanical equipment installation services; Research and development of intelligent robots