European Open Procedure For The Contract Of Environmental Surveillance And Safety Services Of Firenze Parcheggi S.P.A. For The Duration Of 18 Months With The Possibility Of Extension For A Further 18 Months - Ordinary Sectors Of Amount Higher Than The European Thresholds With The Criteria Of The Most Economically Advantageous Offer On The Basis Of The Best Quality/Price Ratio - Which S03980970481202600001