Road freight transport (excluding dangerous goods). General projects: manufacturing of molds; sales of molds; research and development of mechanical equipment; manufacturing of specialized equipment (excluding manufacturing of licensed specialized equipment); sales of mechanical equipment; installation services for general mechanical equipment; technical services, technical development, technical consulting, technical exchange, technology transfer, and technology promotion; road freight transport for trucks with a total mass of 4.5 tons or less (excluding online freight and dangerous goods); manufacturing of mechanical and electrical equipment; sales of mechanical and electrical equipment; sales of electrical equipment; repair of electrical equipment; manufacturing of electronic specialized equipment; sales of electronic specialized equipment; manufacturing of hydraulic power machinery and components; sales of hydraulic power machinery and components; manufacturing of casting machinery; sales of casting machinery; import and export of goods; import and export of technology; import and export agency; manufacturing of mining machinery; sales of mining machinery.