CPV: 45232000 Ancillary works for pipelines and cables, 45232400 Sewer construction work, 45232411 Foul-water piping construction work, 45232450 Drainage construction works, 45232150 Works related to water-distribution pipelines, 45111291 Site-development work, 45112100 Trench-digging work

CPV: 45231300 Construction work for water and sewage pipelines, 41120000 Non-drinking water, 45231110 Pipelaying construction work, 45232411 Foul-water piping construction work, 45232440 Construction work for sewage pipes, 45232453 Drains construction work, 45233142 Road-repair works, 45233252 Surface work for streets, 45233253 Surface work for footpaths

CPV: 45112000 Excavating and earthmoving work, 45200000 Works for complete or part construction and civil engineering work, 45223220 Structural shell work, 45232410 Sewerage work, 45214210 Primary school construction work, 45223500 Reinforced-concrete structures, 45231110 Pipelaying construction work, 45232130 Storm-water piping construction work, 45232411 Foul-water piping construction work, 45232440 Construction work for sewage pipes, 45232450 Drainage construction works, 45232453 Drains construction work, 45232460 Sanitary works, 45261400 Sheeting work, 45261410 Roof insulation work, 45261213 Metal roof-covering work, 45261100 Roof-framing work, 45261320 Guttering work, 45262100 Scaffolding work, 45262210 Foundation work, 45262310 Reinforced-concrete work, 45262320 Screed works, 45262420 Structural steel erection work for structures, 45262522 Masonry work, 45262670 Metalworking, 45310000 Electrical installation work, 45311000 Electrical wiring and fitting work, 45311100 Electrical wiring work, 45311200 Electrical fitting work, 45312100 Fire-alarm system installation work, 45312310 Lightning-protection works, 45312311 Lightning-conductor installation work, 45313100 Lift installation work, 45314000 Installation of telecommunications equipment, 45314200 Installation of telephone lines, 45314300 Installation of cable infrastructure, 45314310 Installation of cable laying, 45314320 Installation of computer cabling, 45315000 Electrical installation work of heating and other electrical building-equipment, 45315100 Electrical engineering installation works, 45315300 Electricity supply installations, 45315600 Low-voltage installation work, 45315700 Switching station installation work, 45316000 Installation work of illumination and signalling systems, 45316100 Installation of outdoor illumination equipment, 45321000 Thermal insulation work, 45323000 Sound insulation work, 45317000 Other electrical installation work, 45324000 Plasterboard works, 45330000 Plumbing and sanitary works, 45331000 Heating, ventilation and air-conditioning installation work, 45343000 Fire-prevention installation works, 45343100 Fireproofing work, 45410000 Plastering work, 45421100 Installation of doors and windows and related components, 45421130 Installation of doors and windows, 45421151 Installation of fitted kitchens, 45421152 Installation of partition walls, 45422000 Carpentry installation work, 45430000 Floor and wall covering work, 45431000 Tiling work, 45442110 Painting work of buildings, 45443000 Facade work

CPV: 45231300 Construction work for water and sewage pipelines, 45231100 General construction work for pipelines, 45231110 Pipelaying construction work, 45232100 Ancillary works for water pipelines, 45232150 Works related to water-distribution pipelines, 45232151 Water-main refurbishment construction work, 45232411 Foul-water piping construction work, 45232400 Sewer construction work, 45232431 Wastewater pumping station, 45232152 Pumping station construction work, 45252127 Wastewater treatment plant construction work, 45252126 Drinking-water treatment plant construction work, 51100000 Installation services of electrical and mechanical equipment, 71322200 Pipeline-design services, 71310000 Consultative engineering and construction services, 71311000 Civil engineering consultancy services, 71334000 Mechanical and electrical engineering services