70mm INTERPEN Door and Window systems combined system with the elegance design and excellent thermal and sound insulation system. Innovative profile system represent glossy and attractive design with rounded lines.
Concerning Special reinforcements ,five chamber system was achieve a thermal insulation value of U=1,1W/m2. INTERPEN 70mm in window system proves in all parameters that it has a elegant appearance, glossy surface, excellent thermal and heat insulation and as well as reliability and durability system.
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Doğan Glass Company was established in 1959, It had only fifty sqm working area.
Our Company started its activities with the import glasses because of there were not any companies who producing flat glasses in Turkey.
Trakya Cam Sanayii A.Ş. was founded by Şişecam A.Ş. in 1971 and after the establishment, our company became a main and the first supplier of Şişecam in 1971 in Eskişehir and continue its commercial activities to till today.
The main activities of our company not only to be a dealer and seller of Trakya Cam A.Ş. beside of this in 2012 we made new investments in Pvc Production Sector which are; Production of UPVC Rigid sheets, Pvc flat sandwich panels, pvc thermoforming decorative panel doors under the our brand of APLAN and since 2013 under the our brand of INTERPEN we started to production of PVC profiles for PVC Door and Window systems.