Single-layer, double-glazing glass, or insulating glass with manual louver
It is easy to pull and push when the door is lifted. When you drop the door, it seal tightly with door frame through gasket
Using one “SIEGENIA” handle for lifting, pulling and dropping the door You can drop the door wherever on the frame to freely adjust the opening size for ventilation When it closes, using the weight of the door, the gasket in the upper and lower part of the frame will seal tightly to provide anti-theft, waterproof and windproof result
The threshold has a loading of 300KG Using thermal-break aluminium alloy, it has higher performance of heat-insulation and sound-insulation.