Jiangsu dawang ventilation machinery co.,ltd is the first artificial intelligence industrial fans manufacturer in China. We are specializing in design, R & D, production, marketing and maintenance services for new generation super large industrial ventilation fans.DAWANGFANS adopts HVLS fan technology by American, which is the most directly and effective solution to ventilation and cooling for high volume. With years of experience and strong technical R & D team, we always maintained progressiveness in HVLS industry!