Maciej Mrówka

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

25.62.Z - Mechanical working of metal elements

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

42.13.Z - Works related to construction of bridges and tunnels

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

43.11.Z - Demolition

43.39.Z - Other building completion and finishing

43.99.Z - Other specialised construction activities not elsewhere classified

52.21.Z - Service activities incidental to land transportation