Error Correction Ad Of The Public Entity Business Administrator Of Railway Infrastructure (Adif), Which Communicates The New Opening Date Of Economic Offers Of The Hiring Procedure "Provision, Modification And Adaptation Of Signaling Facilities, Fixed And Mobile Telecommunications For The Execution Of The Constructive Project For The Execution Of Cms Conditions In Bifurcation Aigües, Variant Of Vallbona And Montcada I Reixac ". (File: 3.25/06110.0020).