Open Telematic Procedure In The European Framework Pursuant To Articles. 70 And 71 Of The Legislative Decree. N. 3672023, Aimed At The Conclusion Of A Framework Agreement With Several Economic Operators, For The Awarding Of The Supply Of Material For Spine Surgery Operations Required To The S.C. Neurosurgery Of The Hospital - University Of Ss. Antonio E Biagio And Cesare Arrigo Of Alessandria For A Period Of 36 Months With The Option Of Extension Of 12 Months - Various Cig