el WAL Sebastian Walkowiak

33.14.Z - Repair and maintenance of electrical equipment

16.10.Z - Sawmilling and planing of wood

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

43.11.Z - Demolition

43.21.Z - Electrical installation

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

43.31.Z - Plastering

43.32.Z - Joinery installation

43.33.Z - Floor and wall covering

43.34.Z - Painting and glazing

43.91.Z - Roofing activities

43.99.Z - Other specialised construction activities not elsewhere classified

81.21.Z - General cleaning of buildings

81.30.Z - Landscape service activities