16 Nisipari str.
District 1, Bucharest, Romania 014125
Phone: +40728777566
E-mail: info@gtengineering.ro
16 Mavromihali str.
Athens, Greece 10680
Phone: +40728777566
E-mail: info@gtengineering.ro
10/5 Viyana str., Yenisehir District
Barajyolu Road, Atasehir, Istanbul, Turkey 34779
Phone: +905332932914
E-mail: baris.arkun@gtengineering.ro