Below is contact information for our Turkey and USA office, as well as a direct contact form at the bottom for your convenience.

TURKEY

Yalçın Koreş Cd. Arif Ağa Sk. No: 24
Yenibosna-Bahçelievler
İSTANBUL

Telephone: +90 212 651 8090
Fax: +90 212 651 8083
E-mail: info@gck.com.tr

USA Office

E-mail: info@gck.com.tr

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