LVDUN 4-panel vertical bifold windows &doors bifold window aluminum color:Brown Glass Type:4-10mm single or double

Glass Type:4-10mm single or double glass

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and the handle downward is to close

LVDUN 4-panel vertical bifold windows &doors bifold window aluminum color:Brown Glass Type:4-10mm single or doubleLVDUN 4 panel vertical bifold windows &doors bifold window aluminum Product Description 1. Bifold windows are perfect for replacement and refurbishment installations, new extensions & newly built homes. Our products are perfect for modern day open living and can transform any space whilst allowing you to enjoy your stunning views. 2. A large bi folding window fills a room with light, making it feel bigger, brighter, and more beautiful. Main parameters