Bidding Adif - Presidency Announcement. Object: Execution Of Construction Project Works For The Suppression Of Temporary Speed Limitation At 60 Km/H That Affects The Metal Section Between Pk 389+940 And 390+030. Line 320. Chinchilla De Montaragón Ag. 298.4 To Cartagena. File: 3.25/27507.0151.