1.low price 2.good radiating film,high efficiency 3.Fiberglass material 4.ISO9001,CE,SGS Cooling capacity ranges from 3 to 780 M3/h, relevant refrigeration ton is from 5 to1000.Body: FRP body which contain stabilization material resisting ultraviolet radiation. It has long service life.Fan: Use special fan with variable section, twist and pitching blade. The fan Works at an equal speed, a low ...