Branch RaoEn international doors and Windows, the headquarters is located in hebi city, henan province, covers an area of 1.2 million square meters, is a focus on low energy consumption system product research and development, production, sales, installation and service, foster and develop energy-saving Windows and doors industry chain as one of the modern building energy conservation enterprise, the asia-pacific region, specializing in providing scientific and standardized system of ultra-low power Windows and doors solution. Kronen imported advanced technology from Germany, equipped with imported high-speed extrusion production line and laminating equipment, the use of new polymer "Compound profiles", give doors and Windows more excellent performance, can meet the requirements of various buildings in different areas of green energy saving customization. It can not only be applied to public buildings and civil buildings, but also meet the requirements of ultra-low energy consumption and green energy saving of different areas and buildings. With excellent products and excellent after-sales service, Kronen has won wide praise from first-line architects and designers and become the ideal choice for thousands of customers to build green and energy-saving buildings.