Our factory own a professional R & D team , production, sales and after-sales service team for over 10years ,covers 8000 ㎡ for production area , adopts American advanced techniques of high air volume and low rotating speed to manufacture HVLS industrial fan, which is the most effective ventilation equipment for large space. And also have 4000 ㎡ for office ,storage area in Shanghai and Guangzhou,with convenient ,cheap and fast transportation.