Established in 2005 and developed international trade business in 2011,Lvdun is a professional manufacturer and exporter in windows and doors industry.We are specialized in the development and production of Aluminum Doors & Windows, Sunroom, Curtain Wall, UPVC Doors & Windows, Window Screens and so on. The factory is located in Linqu County Shandong Pro., China. Covering an area of 30,000 square meter factory, over 100 square meter showroom, we now have 200 employees. And we has passed ISO 9001 certificate. Our Germany imported equipment to make sure the precision to 0.1mm gap, giving our company good technical capabilities. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world. As a result of our high quality products and outstanding customer service, we have gained a global sales network reaching North America, Australia ,New Zealand, UK and Austria.