Open Electronic Procedure For The Awarding Of The Following Lots, For The Presumed Period From 01/04/2026 To 31/03/2029, Plus Any Three-Year Extension And Technical Extension. Lot 1: Cleaning Service Of The Premises Of The Settimo T.Se Municipal Building And Other Branch Offices - Lot 2: Cleaning Service Of The Premises Of Union N.E.T. - Lot 3: Cleaning Service Of The Municipal Building Of S