Guardrail systems which are used for highway security are produced in the Düzce facility of Yimtaş A.Ş. Yimtaş A.Ş, one of the prominent producers of our country, is a founding member of Turkish Association of Steel and Guardrail and Road Safety Systems. Yimtaş A.Ş. is producing and mounting the systems of which patent it holds and which are in compliance with the technical specification of the General Directorate of Highways.