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System 200 KAV composite version
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- Combination PVC-aluminium: weather-resistant and dirt-repelling surface on the outside; warm and comfortable surface on the inside
- Concealed frame drainage
- Air permeability rated DIN EN 12207 class 4
- Watertightness rated DIN EN 12208 class 9A-E900
- Aluminium shells mitre-cut at the angles
- No risk of contact corrosion and decay development between PVC-profiles and aluminium-cover profiles
- KAV: Composite sash fixed on the window sash with metal strips and locks; for especially good sound and thermal insulation values and integrated sight and sun protection
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