W-INSTAL PIOTR BIELSKI

43.21.Z - Installation of electrical systems

08.11.Z - Extraction of ornamental stones, limestone, gypsum, shale, and other stones and rocks

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

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

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

42.12.Z - Works related to the construction of railways and underground railways

42.13.Z - Works related to the construction of bridges and tunnels

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

42.22.Z - Works related to the construction of telecommunications and electrical lines

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

43.35.Z - Performing other finishing construction works

43.91.Z - Masonry works