●Streamlined appearance design, low wind resistance, high energy efficiency;

●Integral molded glass fiber reinforced plastic shell, smooth and flat inner and outer surfaces, low wind resistance, and no corrosion;

●Integral cast aluminum fan blade, high strength, long life;

●The fan adopts imported brand bearing bearing with oil filling hole, which can carry out oil filling and maintenance on the bearing regularly, which greatly improves the service life of the bearing;

●New compression spring type tensioning device, the tensioning effect is better than ordinary torsion spring type tensioning device;

●Aluminum alloy fan column, light weight, high strength, and the windward surface adopts a circular arc structure, and the wind resistance is smaller;

●Cast iron belt pulley, high strength, wear resistance, long life;

●Imported V-belt, small deformation and long life.