Manufacturing of specialized equipment for glass, ceramics and enamel products; research and development of mechanical equipment; sales of mechanical equipment; software development; software sales; manufacturing of general equipment (excluding special equipment manufacturing); manufacturing of specialized equipment (excluding licensed specialized equipment manufacturing); technical services, technical development, technical consulting, technical exchange, technology transfer, technology promotion; repair of specialized equipment; repair of general equipment; electronic and mechanical equipment maintenance (excluding special equipment); manufacturing of general parts; processing of mechanical parts and components; sales of mechanical parts and components; goods import and export; technology import and export; property management; housing leasing; non-residential housing leasing; road freight transport of general freight vehicles with a total mass of 4.5 tons or less (excluding network freight and dangerous goods).