CPV: 45000000 Construction work, 09300000 Electricity, heating, solar and nuclear energy, 44115220 Heating materials, 44115210 Plumbing materials, 44130000 Sewer mains, 44160000 Pipeline, piping, pipes, casing, tubing and related items, 42510000 Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery, 45331231 Installation work of refrigeration equipment

CPV: 44600000 Tanks, reservoirs and containers; central-heating radiators and boilers, 44130000 Sewer mains, 44160000 Pipeline, piping, pipes, casing, tubing and related items, 44410000 Articles for the bathroom and kitchen

CPV: 44130000 Sewer mains

CPV: 45232410 Sewerage work, 44130000 Sewer mains

CPV: 44130000 Sewer mains

CPV: 44100000 Construction materials and associated items, 31523200 Permanent message signs, 34928470 Signage, 34928472 Sign posts, 34992100 Illuminated traffic signs, 34992200 Road signs, 44130000 Sewer mains, 44160000 Pipeline, piping, pipes, casing, tubing and related items, 44190000 Miscellaneous construction materials, 44300000 Cable, wire and related products, 45000000 Construction work, 45230000 Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork

CPV: 44130000 Sewer mains, 44162500 Drinking-water piping, 45231300 Construction work for water and sewage pipelines

CPV: 44160000 Pipeline, piping, pipes, casing, tubing and related items, 44161100 Gas pipelines, 42130000 Taps, cocks, valves and similar appliances, 44130000 Sewer mains, 44161000 Pipelines, 44162000 Piping, 44163000 Pipes and fittings, 44164000 Casing and tubing, 44165000 Hoses, risers and sleeves, 44166000 Oil country tubular goods, 44167000 Various pipe fittings

CPV: 44132000 Culvert elements, 09100000 Fuels, 09300000 Electricity, heating, solar and nuclear energy, 14622000 Steel, 18100000 Occupational clothing, special workwear and accessories, 19520000 Plastic products, 19640000 Polythene waste and refuse sacks and bags, 22460000 Trade-advertising material, commercial catalogues and manuals, 22800000 Paper or paperboard registers, account books, binders, forms and other articles of printed stationery, 24100000 Gases, 24321000 Hydrocarbons, 24954000 Activated carbon, 24960000 Various chemical products, 30100000 Office machinery, equipment and supplies except computers, printers and furniture, 30190000 Various office equipment and supplies, 30230000 Computer-related equipment, 31000000 Electrical machinery, apparatus, equipment and consumables; lighting, 31100000 Electric motors, generators and transformers, 31120000 Generators, 31170000 Transformers, 31200000 Electricity distribution and control apparatus, 31320000 Power distribution cables, 31400000 Accumulators, primary cells and primary batteries, 31500000 Lighting equipment and electric lamps, 31600000 Electrical equipment and apparatus, 31680000 Electrical supplies and accessories, 31710000 Electronic equipment, 31711310 System for recording attendance, 31720000 Electromechanical equipment, 32323500 Video-surveillance system, 33191000 Sterilisation, disinfection and hygiene devices, 33600000 Pharmaceutical products, 33696500 Laboratory reagents, 33790000 Laboratory, hygienic or pharmaceutical glassware, 34100000 Motor vehicles, 34951300 Sludge-drier installation, 35000000 Security, fire-fighting, police and defence equipment, 35800000 Individual and support equipment, 38000000 Laboratory, optical and precision equipments (excl. glasses), 38290000 Surveying, hydrographic, oceanographic and hydrological instruments and appliances, 38400000 Instruments for checking physical characteristics, 38421100 Water meters, 38800000 Industrial process control equipment and remote-control equipment, 39180000 Laboratory furniture, 39717000 Fans and air-conditioning appliances, 42000000 Industrial machinery, 42120000 Pumps and compressors, 42121300 Pneumatic power engines, 42130000 Taps, cocks, valves and similar appliances, 42400000 Lifting and handling equipment and parts, 42514000 Machinery and apparatus for filtering or purifying gases, 42912000 Liquid filtering or purifying machinery and apparatus, 42912300 Machinery and apparatus for filtering or purifying water, 42996000 Machinery for the treatment of sewage, 42996900 Sludge-processing equipment, 43300000 Construction machinery and equipment, 44000000 Construction structures and materials; auxiliary products to construction (except electric apparatus), 44130000 Sewer mains, 44160000 Pipeline, piping, pipes, casing, tubing and related items, 44316000 Ironmongery, 44470000 Cast-iron products, 44600000 Tanks, reservoirs and containers; central-heating radiators and boilers, 44617200 Meter housings, 48000000 Software package and information systems, 65400000 Other sources of energy supplies and distribution, 38300000 Measuring instruments