EFK 5 SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

35.11.Z - Generation of electricity from non-renewable sources

35.12.Z - Generation of electricity from renewable sources

35.13.Z - Transmission of electricity

35.14.Z - Distribution of electricity

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

42.22.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