Electronic Tender Above The Limits For The Selection Of A Contractor For The Provision Of Services For The Implementation Of Sub-Project 5 Entitled "Providing Services To The Quality Assurance Unit, The Strategic Planning Unit And The Teaching And Learning Support Center Of The University Of Piraeus" With Project Code 83241 Within The Framework Of The "Quality Assurance, Strategic Development, Support Services" Of Teaching And Learning For Members Of The Academic Community And Digital Governance Unit At The University Of Piraeus" With Ops Code 6038284 In The "Human Resources And Social Cohesion 2021-2027" Program