Founded in 1987, German Ovidun International Group Co., Ltd., headquartered in Hong Kong, with a registered capital of 28 million euros, has introduced advanced technology and equipment of German bridge cutoff aluminum profiles, and has successively established 26 production lines with international * * * level, with an annual output of 50000 tons of new energy-saving and heat-insulating bridge cutoff aluminum alloy profiles, aviation, aerospace, and automotive profiles, which are sold all over the world. Ouvidun? The system door and window profiles are widely used in various villas, high-level residences and office buildings in the north and south of the country, and have been praised as the standard setting of luxury houses and high-level business residences by the real estate industry. With the continuous development of the company, the group headquarters registered and established "Zhengzhou Weidun Doors and Windows Co., Ltd." in Zhengzhou in 2014, which is responsible for the operation promotion, logistics and after-sales service of domestic building aluminum profiles and energy-saving and sound insulation door and window systems. Set up Ovidun New Material R&D Center in Shandong Weifang ZhongEurope Door and Window Industrial Park, cooperate with Shandong Huajian Aluminum Group, set up a 10000 ton/year aluminum profile processing base, introduce German * * * equipment and domestic full-automatic CNC processing production line, and hire German related personnel to regularly tour and guide and train employees. At the beginning of 2018, Luoyang Ouweidun Doors and Windows Co., Ltd. was registered in partnership with Luoyang Qianqiuye Building Decoration Engineering Co., Ltd., and 20000 square meters of standard factory buildings and 20000 square meters of technology research and development center buildings were built in Yichuan Industrial Cluster. Undertake the R&D and product operation promotion center of energy-saving and sound insulation window system, multi-functional solar room system, prefabricated building and passive room new technology of German Ovidun International Group Co., Ltd. Company website http://www.lyshachuang.net/