Technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; motor manufacturing; motor and control system research and development; mechanical equipment research and development; mechanical and electrical equipment manufacturing; mechanical and electrical equipment sales; general equipment manufacturing (excluding special equipment manufacturing); mining machinery sales; fans and fans sales; Sales of pumps and vacuum equipment; sales of bearings, gears and transmission components; sales of special equipment for pulping and papermaking; industrial engineering design services; repair of electrical equipment; sales of special equipment; repair of general equipment; retail of auto parts; wholesale of motorcycles and parts; sales of special pharmaceutical equipment; import and export of goods; import and export of technology.