Wentylacja i Klimatyzacja Artur Naczk

25.62.Z - Production of locks and hinges

33.12.Z - Repair and maintenance of machinery

33.15.Z - Repair and maintenance of civilian ships and boats

33.19.Z - Repair and maintenance of other equipment and installations

33.20.Z - Installation of industrial machinery, equipment, and devices

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

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

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

43.29.Z - Specialized construction works

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