MAINTENANCE SERVICES FOR BUILDINGS AND FACILITIES SUPPORTING THE GENERAL INTEREST RAIL NETWORK (RFIG). LOT I (NORTHWEST REGION) (SPAIN)

> Buildings/facilities. 136.

> Maintenance, upkeep, repairs, and regulatory inspections of sundry facilities in buildings and maintenance centres in the area of the Conventional Network, Metric Width, and High-Speed lines managed by Adif and Adif AV.