Amusement park,zoos & arboretums,Kids playgroundIndustrial area:? Gym& Fitness Center,Warehouse,factoryAgricultural area:Greenhouse,BarnTraffic Stations：Airport, rail-way station, bus station, metro station?Certification?Agents & Distributors Sales Network Global?Our Company?Established in 2007.optimal machinery is China the first one manufacture of HVLS industrial fan. Introduce the America High Volume ,Low Speed fan technology, Continuously innovate the HVLS fan technology.Research & dev