CPV: 45311200 Electrical fitting work, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants, 45311000 Electrical wiring and fitting work, 45315700 Switching station installation work

CPV: 45000000 Construction work, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants, 45252200 Purification plant equipment, 45231000 Construction work for pipelines, communication and power lines

CPV: 45350000 Mechanical installations, 42122220 Sewage pumps, 45232424 Sewage outfall construction work, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants

CPV: 45250000 Construction works for plants, mining and manufacturing and for buildings relating to the oil and gas industry, 14630000 Slag, dross, ferrous waste and scrap, 42300000 Industrial or laboratory furnaces, incinerators and ovens, 42414000 Cranes, mobile lifting frames and works trucks fitted with a crane, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants

CPV: 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants, 42522100 Parts of fans, 45252127 Wastewater treatment plant construction work, 45252130 Sewage plant equipment, 45252210 Water purification plant construction work, 45252200 Purification plant equipment

CPV: 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants

CPV: 45000000 Construction work, 45232410 Sewerage work, 45231100 General construction work for pipelines, 45231110 Pipelaying construction work, 45231300 Construction work for water and sewage pipelines, 45232150 Works related to water-distribution pipelines, 45232430 Water-treatment work, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants, 45252120 Water-treatment plant construction work, 45252127 Wastewater treatment plant construction work, 45255110 Wells construction work, 45262220 Water-well drilling, 45262600 Miscellaneous special-trade construction work, 45310000 Electrical installation work, 45330000 Plumbing and sanitary works, 45453000 Overhaul and refurbishment work

CPV: 45000000 Construction work, 45100000 Site preparation work, 45110000 Building demolition and wrecking work and earthmoving work, 45111000 Demolition, site preparation and clearance work, 45112000 Excavating and earthmoving work, 45200000 Works for complete or part construction and civil engineering work, 45210000 Building construction work, 45211000 Construction work for multi-dwelling buildings and individual houses, 45212000 Construction work for buildings relating to leisure, sports, culture, lodging and restaurants, 45342000 Erection of fencing, 45213000 Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport, 45214000 Construction work for buildings relating to education and research, 45215000 Construction work for buildings relating to health and social services, for crematoriums and public conveniences, 45220000 Engineering works and construction works, 45221000 Construction work for bridges and tunnels, shafts and subways, 45223000 Structures construction work, 45230000 Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork, 45231000 Construction work for pipelines, communication and power lines, 45232000 Ancillary works for pipelines and cables, 45233000 Construction, foundation and surface works for highways, roads, 45235000 Construction work for airfields, runways and manoeuvring surfaces, 45236000 Flatwork, 45252000 Construction works for sewage treatment plants, purification plants and refuse incineration plants, 45259000 Repair and maintenance of plant, 45260000 Roof works and other special trade construction works, 45261000 Erection and related works of roof frames and coverings, 45262000 Special trade construction works other than roof works, 45300000 Building installation work, 45310000 Electrical installation work, 45311000 Electrical wiring and fitting work, 45312000 Alarm system and antenna installation work, 45313000 Lift and escalator installation work, 45314000 Installation of telecommunications equipment, 45315000 Electrical installation work of heating and other electrical building-equipment, 45316000 Installation work of illumination and signalling systems, 45321000 Thermal insulation work, 45317000 Other electrical installation work, 45320000 Insulation work, 45341000 Erection of railings, 45324000 Plasterboard works, 45330000 Plumbing and sanitary works, 45331000 Heating, ventilation and air-conditioning installation work, 45332000 Plumbing and drain-laying work, 45333000 Gas-fitting installation work, 45340000 Fencing, railing and safety equipment installation work, 45343000 Fire-prevention installation works, 45350000 Mechanical installations, 45351000 Mechanical engineering installation works, 45400000 Building completion work, 45410000 Plastering work, 45420000 Joinery and carpentry installation work, 45421000 Joinery work, 45430000 Floor and wall covering work, 45431000 Tiling work, 45432000 Floor-laying and covering, wall-covering and wall-papering work, 45440000 Painting and glazing work, 45441000 Glazing work, 45442000 Application work of protective coatings, 45443000 Facade work, 45450000 Other building completion work