Lot 3 - Engine Oil - Qualification System, Pursuant To The Combined Provisions Of Art. 141 Paragraph 4 Letter. A), Of Art.149 And Of Art. 168 Paragraph 6 Of The Legislative Decree. 36/2023 For The Identification Of Qualified Economic Operators For The Supply Of Lubricating Oils Belonging To The Vehicles Of The Car And Tram Fleet To Be Supplied In Drums, In Five Batches, For A Three-Year Duration And Consequent Authorization To