For The Supply &Amp; Installation Of: Surveillance Systems (Tar) For Air Traffic Management A. In The Terminal Areas Of The International Airports Of Thessaloniki, Heraklion, Rhodes And Corfu B. In The Terminal Area Of Andravida Airport And Long Range Surveillance Systems For The Management Of En-Route Air Traffic, In The Locations "Menetes" Of Karpathos, "Attavyros" Of Rhodes And "Vigla" Of Lemnos. (Cpv: 34962220-6 "Air Traffic Control Systems")