Industrial Fan (Axial-flow Firefighting Smoke-exhaust Fan, Centrifugal Firefighting Smoke exhaust Fan ) and Fan Parts, Ventilation Equipment Parts (Air Valve manufacturer / supplier in China, offering Hush Mixed Flow Fan for ICU and Critical Care Areas Sterile Low Noise Environment, Low Noise Mixed Flow Fan for Subway Stations and Airports Public Area Ventilation, Ultra-Quiet Mixed Flow Fan for Theaters and Auditoriums Silent Air Distribution and so on.