43.22.Z - Plumbing, heat and air-conditioning installation
25.40.Z - Forging and shaping metal and powder metallurgy
25.51.Z - Coating of metals
25.52.Z - Heat treatment of metals
25.53.Z - Machining of metals
42.99.Z - Construction of other civil engineering projects n.e.c.
43.12.Z - Site preparation
43.21.Z - Electrical installation
43.23.Z - Installation of insulation
43.24.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
43.35.Z - Other building completion and finishing
43.41.Z - Roofing activities
43.42.Z - Other specialised construction activities in construction of buildings
43.50.Z - Specialised construction activities in civil engineering
43.91.Z - Masonry and bricklaying activities
43.99.Z - Other specialised construction activities n.e.c.
81.22.A - Cleaning of chimneys, fireplaces, stoves, and ventilation ducts
81.22.B - Other building and industrial facility cleaning not classified elsewhere
