45232332 |
Ancillary works for telecommunications |
Ancillary works for pipelines and cables |
92222000 |
Closed circuit television services |
Television services |
32235000 |
Closed-circuit surveillance system |
Radio transmission apparatus with reception apparatus |
32231000 |
Closed-circuit television apparatus |
Radio transmission apparatus with reception apparatus |
32234000 |
Closed-circuit television cameras |
Radio transmission apparatus with reception apparatus |
45213320 |
Construction work for buildings relating to railway transport |
Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport |
45314000 |
Installation of telecommunications equipment |
Electrical installation work |
51611120 |
Installation services of railway real-time departures and arrival display screens or boards |
Installation services of computers |
64227000 |
Integrated telecommunications services |
Telecommunication services except telephone and data transmission services |
45213321 |
Railway station construction work |
Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport |
35125300 |
Security cameras |
Surveillance system |
35120000 |
Surveillance and security systems and devices |
Emergency and security equipment |
32520000 |
Telecommunications cable and equipment |
Telecommunications equipment and supplies |
64200000 |
Telecommunications services |
Postal and telecommunications services |
50332000 |
Telecommunications-infrastructure maintenance services |
Maintenance services of telecommunications equipment |