Bertas A.S Address: Esenshir Mah. Nato Yolu Cad. Atilim Sokak No:21 Yukarı Dudullu Istanbul 34776 Turkey Telephone: +90 216 4660204 Fax: +90 216 3659910 Email: [email protected] Website: www.bertas.com.tr
Songur Company Limited Address: Konrad Adenauer Cd. 31/B Cankaya Ankara 06550 Turkey Telephone: 0312 428 28 64 Email: [email protected] Website: www.songurticaret.com