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galvanized steel sheet
The fan translation has accredited Europe of CE certification.
Frame: galvanized steel sheet, the layer of the galvanization is 180g and the frame is one-off molded, also there is a outlet in the bottom.
Fan Blades: 6 pieces of mirror finished stainless steel blades with the diameter of 1250mm
The fan translations have all passed the experiment of homeostasis, which makes the air volume keep the same as the very beginning during the operational life span of the fans. 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 its light and high-strength.
SIEMENS Motor: The motor is high efficiency and low wastage of energy and have accredited 3C and CE certification; the Grade of Protection is IP55 and the Insulation Grade is F.