Road freight transport (excluding hazardous goods); general items: manufacturing of marine supporting equipment; manufacturing of marine engineering equipment; research and development of marine engineering equipment; sales of marine engineering equipment; manufacturing of general equipment (excluding special equipment manufacturing); manufacturing of general parts; processing of mechanical parts and components; sales of mechanical parts and components; manufacturing of fasteners; sales of fasteners; manufacturing of metal structures; sales of metal structures; sales of metal products; processing and manufacturing of doors and windows; sales of doors and windows; manufacturing of water transport equipment parts; sales of water transport equipment parts; road freight transport of general cargo vehicles with a total mass of 4.5 tons and below (excluding network freight and hazardous goods).