BIT ALFRA Witold Wdówka

71.12.B - Engineering activities and related technical consultancy

16.25.Z - Production of wooden doors and windows

22.23.Z - Manufacture of plastic doors and windows

22.24.Z - Manufacture of plastic products for construction

36.00.Z - Extraction, treatment, and supply of water

37.00.Z - Sewerage and waste water treatment

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

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

42.99.Z - Works related to the construction of other civil engineering and water engineering objects, not classified elsewhere

43.12.Z - Site preparation for construction

43.21.Z - Installation of electrical systems

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

43.23.Z - Installation of insulation

43.24.Z - Installation of other building systems

43.32.Z - Installation of building carpentry

43.34.Z - Painting and glazing

43.35.Z - Performing other finishing construction works

43.42.Z - Performing other specialized construction works related to the construction of buildings

43.60.Z - Intermediation in specialized construction services

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

71.20.B - Inspection and issuing opinions on the technical condition of chimneys and ventilation ducts

71.20.C - Other technical testing and analysis

74.99.Z - All other professional, scientific and technical activities, not elsewhere classified