WORKERS INSTALACJE SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

43.22.Z - Installation of plumbing, heating, and air-conditioning systems

41.10.Z - Construction work related to the construction of residential and non-residential buildings

41.20.Z - Construction work related to the construction of residential and non-residential buildings

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

43.12.Z - Site preparation for construction

43.13.Z - Performing excavations and geological-engineering drilling

43.21.Z - Installation of electrical systems

43.29.Z - Specialized construction works

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