School Door Securing Lock Systems

The OKİL Door Securing Occupational Safety Lock System was developed by Haluk ATEŞER, a teacher. It was manufactured between 2010 and 2014 by the family-owned company Defne-San Ltd. Şti. It was subsequently further developed and put into mass production by Ateşer Kilit Sistemleri Enerji, İnşaat, Gıda, Taah. San. ve Tic. Ltd. Şti., which was established in 2014.