MACIEJ JANKIEWICZ

42.91.Z - Works related to the construction of water engineering objects

01.61.Z - Service activities supporting crop production

01.62.Z - Service activities supporting animal husbandry

01.63.Z - Post-harvest services and seed processing for plant propagation

02.20.Z - Logging

08.12.Z - Extraction of gravel, sand, clay, and kaolin

25.11.Z - Production of metal constructions and their parts

25.51.Z - Coating of metals

25.52.Z - Heat treatment of metals

25.53.Z - Mechanical processing of metal parts

25.63.Z - Production of tools

25.91.Z - Production of metal containers

25.93.Z - Production of wire, chains, and springs

25.99.Z - Manufacture of other ready-made metal products not elsewhere classified

28.30.Z - Manufacture of agricultural and forestry machinery

28.41.Z - Manufacture of metalworking machines and mechanical tools for metal

28.42.Z - Manufacture of other mechanical tools

33.11.Z - Repair and maintenance of metal products

33.12.Z - Repair and maintenance of machinery

42.11.Z - Works related to the construction of roads and highways

42.21.Z - Works related to the construction of transmission pipelines and distribution networks

43.11.Z - Demolition and destruction of buildings

43.12.Z - Site preparation for construction

46.21.A - Wholesale trade of cereals and oilseeds

77.31.Z - Rental and leasing of agricultural machinery and equipment

77.32.Z - Rental and leasing of construction machinery and equipment

77.33.Z - Rental and leasing of office machinery and equipment, including computers

81.21.Z - General cleaning of buildings

81.22.A - Chimney, hearth, furnace, and ventilation duct cleaning

81.22.B - Other cleaning of buildings and industrial premises, not elsewhere classified