JAN MĄCZKA JANVOX

41.20.Z - Building works related to erection of residential and non-residential buildings

42.11.Z - Works related to construction of roads and motorways

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

43.21.Z - Electrical installation

43.22.Z - Plumbing, heat and air-conditioning installation

43.29.Z - Other construction installation

43.31.Z - Plastering

43.33.Z - Floor and wall covering

43.34.Z - Painting and glazing

43.99.Z - Other specialised construction activities not elsewhere classified

80.30.Z - Investigation activities

81.21.Z - General cleaning of buildings