* JS-ⅠLuxury Square Axial Fan is a new developed product. It has features as low noise，high flow rates，long wind distance，energy-saving;its casing, outlet shutter are made of Galvanized sheet or Stainless steel，Impellers are made of Aluminum Alloy, not easy to rust; the appearance is nice-looking, convenient to install and maintain.It Is mainly used for air-exchanging, cooling for buldings, factortes，mines，public fields，offices，warehouses, flower houses，etc.Where is not Inflammable, explosive gas.