Public Open Electronic Competition Below Article 5 Of Law 4412/2016, With The Criterion Of Awarding The Most Advantageous Bid For The Price For The & Amp;#8220; For The Needs Of The Regional Union Of Halkidiki 4 Years (2026-2029) & Amp;#8221; Total Budget: € 72.000,00, Not Including Vat 24%