The quality of a product reflects the quality of the entire company. This is why quality assurance according to ISO 9001 -2008 encompasses all sectors of business, production, logistics management and after sales.
The mechanical performance of a window is measured essentially according to three criteria:
In each building, the doors and windows have a decisive influence on the quality of the insulation. A successful product can achieve significant energy savings for heating and cooling homes, offices and other places.