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Frame: galvanized steel sheet, the layer of the galvanization is 280g/m2.and the frame is one-off molded.also there is a outlet in the bottom.
Fan Blades: 6 pieces of Germany-imported mirror finished stainless steel blades with the diameter of 910mm and the angle of the blades is patented designed
Fan Blades: 6 pieces of Germany-imported mirror finished stainless steel blades with the diameter of 910mm and the angle of the blades is patented designed
Shutter: high strength hot-galvanized steel sheet.with a centrifugal system which can ensure the shutter opens with the angle of 90 degree under all the condition. And uncontrollable air can never goes into the birdhouse as the shutter works.
Belt Pulley: the V type belt pulley is aluminium magnesium alloy injection moulded.so it’s light and high-strength.
Belt: the belt is imported from Japan it is ametabolic in a longtime.
Motor: The motor is high efficiency and low wastage of energy and have accredited 3C certification. the Grade of Protection is IP55 and the Insulation Grade is F.
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