1 Reasonable cone design, low noise, big air flow, strong ventilation, low operating cost 2 Long live bearing, high-strength, durable 3 Use air downstream principle, stainless louvers or aluminum louvers, antioxidant, light weight, no distortion, open and close sweetly, prevent backflow of air 4 High-strength aluminum–magnesium alloy wheel, light weight, high strength, high toughness 5 It has 6pcs of stainless steel fan blades, no distortion, no breaking, aesthetic durability 6 There are two types of fan house, slant wall type, upright wall type to satisfy varieties needs of different customers 7 The fan passed CE certificate 8 The high efficient and energy-saving motor passed the national CCC certification, also protection class: IP*5, insulation class: F grade
