General equipment manufacturing (excluding special equipment manufacturing); manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; research and development of Internet of Things technology; research and development of auto parts; manufacturing of auto parts and accessories; wholesale of auto parts; retail of auto parts; manufacturing of material handling equipment; sales of material handling equipment; manufacturing of pneumatic and electric tools; sales of pneumatic and electric tools; manufacturing of industrial textile products; sales of industrial textile products; manufacturing of gas, liquid separation and purification equipment; sales of gas, liquid separation and purification equipment; sales of automotive decoration supplies; research and development of hardware products; manufacturing of hardware products; retail of hardware products; wholesale of hardware products; manufacturing of forgings and powder metallurgy products; sales of forgings and powder metallurgy products; manufacturing of rubber products; sales of rubber products; manufacturing of plastic products; sales of plastic products; sales of outdoor supplies; research and development of motors and their control systems; intelligent control system integration; industrial design services; manufacturing of electronic components and electromechanical component equipment; sales of electronic components and electromechanical component equipment; manufacturing of lighting fixtures; sales of lighting fixtures; manufacturing of pumps and vacuum equipment; sales of pumps and vacuum equipment; manufacturing of computer software and hardware and peripheral equipment; automobile sales; motor vehicle repair and maintenance. Licensed items: inspection and testing services; power generation, transmission, and distribution (power supply) business; road motor vehicle manufacturing.