Steel Door Our company was established in 1998, became operational in 2000. DEMER GROUP -Diamond Steel Door Industry Construction Trade Limited Company Factory '' Diamond '' brand is continuing its production in 3000 m2 closed steel door. Steel doors of our factory has a daily production of 150 pieces, 200 pieces can be removed with double shifts. Diamond steel doors and systems, Quality and customer satisfaction based on the concept and aims to become the leading company in the technology sector with its investments in steel doors. Our company is TSE Certificate, Production Certificate of Competence, Industry Registration Certificate, Certificate of Eligibility Service Place, Trademark Registration Certificate, the highest level of product quality and warranty with Document moved. Diamond Steel Door mill experienced personnel and increasing production, the quality of steel gates to our customers and dealers throughout Turkey and abroad, continues to sales. Our goal is to get from a reputable place in the country, is to supply a growing export to foreign countries. Countries abroad mainly Balkan countries, Middle East, West Africa, Europe and exports to many foreign countries are ongoing, new contacts are still continuing. Our Manufacturing and marketing ability in a better place, and endeavor to grow still further with the search for new markets, and also shows the growth, employment creation and supports the process of becoming an integrated plant.