KRZYSZTOF JANAS Firma Handlowo-Usługowa JAN-POL

43.99.Z - Other specialized construction works, not classified elsewhere

02.20.Z - Logging

02.40.Z - Service activities related to forestry

16.11.Z - Sawmill products production

23.66.Z - Production of other concrete, cement, and gypsum products

25.11.Z - Production of metal constructions and their parts

33.12.Z - Repair and maintenance of machinery

38.21.Z - Material recovery

41.00.A - Construction work related to the construction of residential buildings

41.00.B - Construction work related to the construction of non-residential buildings

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

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

43.31.Z - Plastering

43.32.Z - Installation of building carpentry

43.33.Z - Flooring, wallpapering, and cladding of walls

43.34.Z - Painting and glazing

43.35.Z - Performing other finishing construction works

43.41.Z - Performing roof structures and coverings

46.83.Z - Wholesale trade of wood, construction materials, and sanitary equipment

46.87.Z - Wholesale trade of waste and scrap

46.90.Z - Non-specialized wholesale trade

49.41.Z - Road freight transport

49.42.Z - Moving services

70.20.Z - Business and management consultancy activities

71.20.C - Other technical testing and analysis

85.59.D - Other non-school forms of education, not classified elsewhere