Service contract for the control and surveillance of the works of the project to adapt to the minimum safety requirements of tunnels between PK 17 + 500 and PK 55 + 000 on the M-50 road, according to Directive 2004/54 / CE and RD 635/2006 (code 52-M-0003).
Service contract for the control and surveillance of the works of the project to adapt to the minimum safety requirements of tunnels between PK 17 + 500 and PK 55 + 000 on the M-50 road, according to Directive 2004/54 / CE and RD 635/2006 (code 52-M-0003).