Kaya Mühendislik
Kaya mühendislik, which was establıshed in 1993 by Turhan Sivrikaya as the Geologıcal and Geotechnıcal offıce ın Akçaabat-Trabzon (TURKEY) , and began to servıce ın the fıeld of Qualıty Control (Soil,Rock.Petography and Concrete) laboratory in 1999. Kaya Mühendislık Qualıty Control laboratory was founded for commercıal ,educatıonal and research purposes. The laboratory was entıtled to get laboratory permıssıon certıfıcate from mınıstery of Publıc Works, dated may 16,2002, numbered 26.