F.H.U. INSTAL-MAZUR Grzegorz Mazur

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

33.11.Z - Repair and maintenance of metal products

33.12.Z - Repair and maintenance of machinery

33.20.Z - Installation of industrial machinery, equipment, and devices

41.10.Z - Construction work related to the construction of residential and non-residential buildings

41.20.Z - Construction work related to the construction of residential and non-residential buildings

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

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

43.29.Z - Specialized construction works

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

43.39.Z - Specialized construction works

47.99.Z - Retail trade

71.12.Z - Engineering activities and related technical consultancy

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

81.21.Z - General cleaning of buildings

96.09.Z - Individual service activities