Open Procedure Pursuant To Art. 71 Of Legislative Decree 36/2023 Aimed At Signing A Framework Agreement Pursuant To Art. 59 Of The Legislative Decree. 36/2023 Lasting Two Years Relating To Services On Request With An Indefinite Quantity Of Careening, Washing, Crate Cleaning And Painting Necessary To Restore The Efficiency Of The Uu.Nn. Of The Navy And Public And Private Shipowners