Oray Air Duct Systems l was established in 1999 and started its activities. It continues to produce for more than 23 years with a daily production volume of 4000m2 in its production facilities located in Istanbul, Cekmekoy. Oray Air Duct Systems, one of the important companies in the ventilation production and contracting sector, has successfully completed and delivered many national and international projects. It continues its export activities with more than 35 countries, especially America, Macedonia, Azerbaijan and Uzbekistan. It is the only company in Turkey with a wide air duct product range. Spiro System Gasketed Air Ducts has produced the first and only Spiro System Oval Section Air Ducts in Turkey. Oray Air Duct Systems, which has always been one of the leading and innovative companies in its sector, attaches great importance to R&D studies since establishment. These efforts were rewarded by starting the domestic production of Press Air Duct Fittings, which were imported until 2013. Continuing our planning work with our new products, it continues to be Turkey's leading company in the sector with its nearly 200 employees. Oray Air Duct Systems Invariant Principles; It has always been quality service, timely delivery, and reasonable price. Working with the principle of honesty and quality in service, the guarantee of success and continuity in production Oray Air Duct Systems, will continue to provide the best service today and in the future.