Open Electronic Tender Below The Limits With The Object Of Providing Management And Maintenance Services Of The Information Systems, The Network And The Support Of The Pc Users Of The Mesogeion Building 119 Of The Y.P.En, The Assistance Of The Executives Of The Electronic Government Directorate For The Support Of Pc Users In The Other Buildings Of The Ministry Of Foreign Affairs In Attica And The Inspection Body Of Northern Greece (Sebe) Of The Ministry Of Foreign Affairs In Thessaloniki.