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
43.24.Z - Installation of other building systems
43.50.Z - Specialized construction works in the field of civil and water engineering
68.12.C - Development of building projects
Opinie dotyczące usług, produktów oraz działalności firmy nie są weryfikowane