FIRMA OGÓLNOBUDOWLANA - CIERZNIAK PIOTR

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

22.21.Z - Manufacture of plastic plates, sheets, tubes, and profiles

43.11.Z - Demolition and destruction of buildings

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

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

43.31.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

43.91.Z - Masonry works

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