- Window system of development width equal to 70 mm.
- Invisible, internal, static rigid core.
- High rigidity of the window.
- High thermal and acoustic insulation; heat transfer coefficient Uf 1.3 W/(m2K).
- Innovative technology minimising CO2 emissions and reducing energy consumption.
- Possible use of packages with 2 and 3 glass panes
- Freedom of choosing colourway and decors
- Continuation of Greenline idea – the use of eco-friendly, non-leaded zinc-lime stabilisers.