European Tender For Electronic Procedure Open For The Contract For The Preparation, Transport And Administration Of Meals Of The School Canteen Of The Kindergarten And Primary School Of Varallo And The Municipal Nursery School For A. S. 2025/2026, 2026/2027, 2027/2028 And 2028/2029- Open Electronic Procedure Open Criteria Offer Economically More Advantageous (Art. 71 And Art.130 Of Legislative Decree No. 36/2023