Zhengzhou Deao Science & Technology Co., Ltd is a professional screen changer research and development manufacturer, from the end of last century 1980s till now already accumulated nearly 30 years experience, Our company founder is the earliest researcher and pacemaker in Chinese screen changer industry. We`ve focused on non-stop machine screen changer `s research from the day of setting up, have been honoring 30 international and domestic invent patents, utility model patent and software works patent, the technology arrived the world leading level and painted a new chapter of non-stop machine screen changer . 

     Companies strong R & D capabilities filled many domestic technology blank, attracts extensive attention of the state and society. Now we are innovation project of the National Science and Technology Ministry, science and technology key project of Henan province, Zhengzhou city patent pilot enterprise and key service enterprise . Relying on its technology and innovation strength, Deao provides the turn-key solution successfully for the filtering demands of state level key project and new material project . Products have been selling as far as America, Africa, Middle east, Western Europe, Southeast Asia etc, 72 countries, provided screen changing filter project for more than 3000 customers.

    Looking into the future, it`s still a long and high-responsible way, Deao will continue to take independent inovation as the core, with customer`s satisfaction as the purpose, honestly and integrity, continuously innovate to provide customer with a more complete , systematic, intelligent project.