Suzhou Optimal Machinery Co . Ltd (OPTFAN)established in 2007, is the pioneer of the HVLS (High-Volume, Low-Speed) fan industry in China. As the leader in HVLS fans , OPT introduced its groundbreaking first generation "HVLS industrial fans" in 2007. They are dedicated to innovating and perfecting the most efficient HVLS fans for large open space cooling and ventilation.
link:https://www.hvlsfanchina.com
SUZHOU OPTIMAL MACHINERY CO.,LTD