ERKA - SYSTEMY FASADOWE ROMAN ZAJĄC

25.12.Z - Manufacture of metal elements of building woodwork

25.11.Z - Manufacture of metal structures and parts of structures

25.62.Z - Mechanical working of metal elements

41.10.Z - Realization of building projects related to erection of buildings

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

43.11.Z - Demolition

43.12.Z - Site preparation

43.13.Z - Test drilling and boring

43.29.Z - Other construction installation

43.31.Z - Plastering

43.32.Z - Joinery installation

43.33.Z - Floor and wall covering

43.34.Z - Painting and glazing

43.39.Z - Other building completion and finishing

43.91.Z - Roofing activities

43.99.Z - Other specialised construction activities not elsewhere classified

46.73.Z - Wholesale of wood, construction materials and sanitary equipment

46.74.Z - Wholesale of hardware and plumbing and heating equipment and supplies

71.11.Z - Architectural activities

71.20.B - Other technical testing and analysis