From 15 years ALNOR Ventilation Systems is appreciated customers not only in Poland but also on the world. Our secret is wide assortment of products, thanks to which we can assure our customers complex service. We offer ventilations elements like: 1. Round and squer ventilation ducts 2. Ventilation fittings 3. Dampers 4. Assembly accessories 5. Pre-fabricated ducts 6. Ducts and fitting building elements 7. Ventilations accessories 8. Flexible ducts for ventilations Our customers are supported by free program "Wentyle". "Wentyle" is AutoCAD' application and assisting in design and calculations of ventilation systems. It also allows convenient system building and easy introduction of changes. The software automatically creates listings of elements used in the project. You may calculate the fall in the pressure in the installation, or in its part, created with the use of the software. More information you will find on our web page http://alnor.com.pl/wsparcie-projektowe-wentyle.html