VELUX swing and folding swing windows of the GGU/GGL/GPU/GPL/GHU/GHL/VU-Y/VL-Y/VKU series, manufactured from 1991-2000. VELUX swing and folding swing windows of the GGU/GGL/GPU/GPL/GHU/GHL/VU-Y/VL-Y/VKU series, manufactured from 2000 to the end of 2009.
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