Prace w wodzie Piotr Reguła

42.91.Z - Works related to construction of water projects

33.12.Z - Repair and maintenance of machinery

33.15.Z - Repair and maintenance of ships and boats

33.20.Z - Installation of industrial machinery and equipment and outfit

42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified

43.99.Z - Other specialised construction activities not elsewhere classified

47.91.Z - Retail sale via mail order houses or via Internet

71.20.B - Other technical testing and analysis

74.90.Z - Other professional, scientific and technical activities not elsewhere classified

85.59.B - Other out-of-school forms of education, not elsewhere classified