QXL is a modern enterprise involved in Windows & Doors design, development, production and sales for more than 15 years. QXL is Founded in 2003 and located in Foshan City, the famous aluminum capital of the country, positioned as the high-end door and window system solution designer & provider. Our products series include: Aluminium doors and windows, Sun rooms and grape trellis. Our passive windows was certified by the Passive House Institute. Relying on various of professional talents and innovation technology, We are dedicated to deliver high standards masterpiece to our customer.