81.22.Z - Specialised building and industrial cleaning activities
23.20.Z - Manufacture of refractory products
23.64.Z - Manufacture of mortars
25.11.Z - Manufacture of metal structures and parts of structures
25.62.Z - Mechanical working of metal elements
41.20.Z - Building works related to erection of residential and non-residential buildings
43.11.Z - Demolition
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
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
46.77.Z - Wholesale of waste and scrap
74.30.Z - Translation and interpretation activities
81.21.Z - General cleaning of buildings
85.59.A - Teaching of foreign languages
85.59.B - Other out-of-school forms of education, not elsewhere classified
85.60.Z - Educational support activities
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