Expression Of Interest Aimed At Identifying N. 1 Economic Operator To Be Invited To The Direct Award Procedure, Pursuant To Art. 50 Paragraph 1 Letter A) Of Legislative Decree 36/2023, With The Criterion Of The Lowest Price For The Awarding Of The "Framework Agreement With Single Operator, Pursuant To Art. 59 Paragraph 3 Of The Code, For Ordinary And Extraordinary Maintenance Of Buildings Owned Or Otherwise Entrusted To The Management Of The Park Regional Of The Lambro Valley”