| 51100000-3 | Installation services of electrical and mechanical equipment | 
        
        
        
        
            | 51110000-6 | Installation services of electrical equipment | 
        
        
        
        
            | 51111000-3 | Installation services of electric motors, generators and transformers | 
        
        
        
        
            | 51111100-4 | Installation services of electric motors | 
        
        
        
        
            | 51111200-5 | Installation services of generators | 
        
        
        
        
            | 51111300-6 | Installation services of transformers | 
        
        
        
        
            | 51112000-0 | Installation services of electricity distribution and control equipment | 
        
        
        
        
            | 51112100-1 | Installation services of electricity distribution equipment | 
        
        
        
        
            | 51112200-2 | Installation services of electricity control equipment | 
        
        
        
        
            | 51120000-9 | Installation services of mechanical equipment | 
        
        
        
        
            | 51121000-6 | Installation services of fitness equipment | 
        
        
        
        
            | 51122000-3 | Installation services of flagpoles | 
        
        
        
        
            | 51130000-2 | Installation services of steam generators, turbines, compressors and burners | 
        
        
        
        
            | 51131000-9 | Installation services of steam generators | 
        
        
        
        
            | 51133000-3 | Installation services of turbines | 
        
        
        
        
            | 51133100-4 | Installation services of gas turbines | 
        
        
        
        
            | 51134000-0 | Installation services of compressors | 
        
        
        
        
            | 51135000-7 | Installation services of furnaces | 
        
        
        
        
            | 51135100-8 | Installation services of burners | 
        
        
        
        
            | 51135110-1 | Installation services of waste incinerators | 
        
        
        
        
            | 51140000-5 | Installation services of engines | 
        
        
        
        
            | 51141000-2 | Installation services of petrol engines | 
        
        
        
        
            | 51142000-9 | Installation services of diesel engines | 
        
        
        
        
            | 51143000-6 | Installation services of railway engines | 
        
        
        
        
            | 51144000-3 | Installation services of vehicle engines | 
        
        
        
        
            | 51145000-0 | Installation services of marine engines | 
        
        
        
        
            | 51146000-7 | Installation services of aircraft engines | 
        
        
        
        
            | 51200000-4 | Installation services of equipment for measuring, checking, testing and navigating | 
        
        
        
        
            | 51210000-7 | Installation services of measuring equipment | 
        
        
        
        
            | 51211000-4 | Installation services of time-measuring equipment | 
        
        
        
        
            | 51212000-1 | Installation services of time register equipment | 
        
        
        
        
            | 51213000-8 | Installation services of time recorder equipment | 
        
        
        
        
            | 51214000-5 | Installation services of parking meter equipment | 
        
        
        
        
            | 51215000-2 | Installation services of meteorological equipment | 
        
        
        
        
            | 51216000-9 | Installation services of geological equipment | 
        
        
        
        
            | 51220000-0 | Installation services of checking equipment | 
        
        
        
        
            | 51221000-7 | Installation services of automatic airport check-in devices | 
        
        
        
        
            | 51230000-3 | Installation services of testing equipment | 
        
        
        
        
            | 51240000-6 | Installation services of navigating equipment | 
        
        
        
        
            | 51300000-5 | Installation services of communications equipment | 
        
        
        
        
            | 51310000-8 | Installation services of radio, television, sound and video equipment | 
        
        
        
        
            | 51311000-5 | Installation services of radio equipment | 
        
        
        
        
            | 51312000-2 | Installation services of television equipment | 
        
        
        
        
            | 51313000-9 | Installation services of sound equipment | 
        
        
        
        
            | 51314000-6 | Installation services of video equipment | 
        
        
        
        
            | 51320000-1 | Installation services of radio and television transmitters | 
        
        
        
        
            | 51321000-8 | Installation services of radio transmitters | 
        
        
        
        
            | 51322000-5 | Installation services of television transmitters | 
        
        
        
        
            | 51330000-4 | Installation services of radiotelephony apparatus | 
        
        
        
        
            | 51340000-7 | Installation services of line telephony equipment | 
        
        
        
        
            | 51350000-0 | Installation services of line telegraphy equipment | 
        
        
        
        
            | 51400000-6 | Installation services of medical and surgical equipment | 
        
        
        
        
            | 51410000-9 | Installation services of medical equipment | 
        
        
        
        
            | 51411000-6 | Installation services of imaging equipment | 
        
        
        
        
            | 51412000-3 | Installation services of dental and subspecialty equipment | 
        
        
        
        
            | 51413000-0 | Installation services of radiotherapy equipment | 
        
        
        
        
            | 51414000-7 | Installation services of mechanotherapy equipment | 
        
        
        
        
            | 51415000-4 | Installation services of electrotherapy equipment | 
        
        
        
        
            | 51416000-1 | Installation services of physical therapy equipment | 
        
        
        
        
            | 51420000-2 | Installation services of surgical equipment | 
        
        
        
        
            | 51430000-5 | Installation services of laboratory equipment | 
        
        
        
        
            | 51500000-7 | Installation services of machinery and equipment | 
        
        
        
        
            | 51510000-0 | Installation services of general-purpose machinery and equipment | 
        
        
        
        
            | 51511000-7 | Installation services of lifting and handling equipment, except lifts and escalators | 
        
        
        
        
            | 51511100-8 | Installation services of lifting equipment | 
        
        
        
        
            | 51511110-1 | Installation services of cranes | 
        
        
        
        
            | 51511200-9 | Installation services of handling equipment | 
        
        
        
        
            | 51511300-0 | Installation services of suspended access equipment | 
        
        
        
        
            | 51511400-1 | Installation services of special conveying systems | 
        
        
        
        
            | 51514000-8 | Installation services of miscellaneous general-purpose machinery | 
        
        
        
        
            | 51514100-9 | Installation services of liquid filtering or purifying machinery and apparatus | 
        
        
        
        
            | 51514110-2 | Installation services of machinery and apparatus for filtering or purifying water | 
        
        
        
        
            | 51520000-3 | Installation services of agricultural and forestry machinery | 
        
        
        
        
            | 51521000-0 | Installation services of agricultural machinery | 
        
        
        
        
            | 51522000-7 | Installation services of forestry machinery | 
        
        
        
        
            | 51530000-6 | Installation services of machine tools | 
        
        
        
        
            | 51540000-9 | Installation services of special-purpose machinery and equipment | 
        
        
        
        
            | 51541000-6 | Installation services of mining, quarrying, construction and metallurgy machinery | 
        
        
        
        
            | 51541100-7 | Installation services of mining machinery | 
        
        
        
        
            | 51541200-8 | Installation services of quarrying machinery | 
        
        
        
        
            | 51541300-9 | Installation services of construction machinery | 
        
        
        
        
            | 51541400-0 | Installation services of metallurgy machinery | 
        
        
        
        
            | 51542000-3 | Installation services of food-, beverage- and tobacco-processing machinery | 
        
        
        
        
            | 51542100-4 | Installation services of food-processing machinery | 
        
        
        
        
            | 51542200-5 | Installation services of beverage-processing machinery | 
        
        
        
        
            | 51542300-6 | Installation services of tobacco-processing machinery | 
        
        
        
        
            | 51543000-0 | Installation services of textile-, clothing- and leather-production machinery | 
        
        
        
        
            | 51543100-1 | Installation services of textile-production machinery | 
        
        
        
        
            | 51543200-2 | Installation services of clothing-production machinery | 
        
        
        
        
            | 51543300-3 | Installation services of leather-production machinery | 
        
        
        
        
            | 51543400-4 | Installation services of laundry washing, dry-cleaning and drying machines | 
        
        
        
        
            | 51544000-7 | Installation services of paper- and paperboard-production machinery | 
        
        
        
        
            | 51544100-8 | Installation services of paper-production machinery | 
        
        
        
        
            | 51544200-9 | Installation services of paperboard-production machinery | 
        
        
        
        
            | 51545000-4 | Installation services of street mailboxes | 
        
        
        
        
            | 51550000-2 | Installation services of weapon systems | 
        
        
        
        
            | 51600000-8 | Installation services of computers and office equipment | 
        
        
        
        
            | 51610000-1 | Installation services of computers and information-processing equipment | 
        
        
        
        
            | 51611000-8 | Installation services of computers | 
        
        
        
        
            | 51611100-9 | Hardware installation services | 
        
        
        
        
            | 51611110-2 | Installation services of airport real-time departures and arrival display screens or boards | 
        
        
        
        
            | 51611120-5 | Installation services of railway real-time departures and arrival display screens or boards | 
        
        
        
        
            | 51612000-5 | Installation services of information-processing equipment | 
        
        
        
        
            | 51620000-4 | Installation services of office equipment | 
        
        
        
        
            | 51700000-9 | Installation services of fire protection equipment | 
        
        
        
        
            | 51800000-0 | Installation services of metal containers | 
        
        
        
        
            | 51810000-3 | Installation services of tanks | 
        
        
        
        
            | 51820000-6 | Installation services of reservoirs | 
        
        
        
        
            | 51900000-1 | Installation services of guidance and control systems |