All segment connection elements for the Halkalı - Istanbul Airport Metro Project, including Pins, Sockets, and Guiding Rods, have been manufactured and delivered from our Polka brand factory located in Çerkezköy.
Mersin - Adana - Gaziantep YHT
The entire membrane and geotextile requirements for the Halkalı - Airport Metro Line Project have been supplied by Geofor.