PETROTEL SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

61.10.Z - Activities in the field of wired, wireless, and satellite telecommunications

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

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

43.21.Z - Installation of electrical systems

43.29.Z - Specialized construction works

61.20.Z - Activities related to the resale of telecommunications services and telecommunications mediation

61.30.Z - Telecommunications

61.90.Z - Activities in other telecommunications fields

80.20.Z - Detective and security activities