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1) The unique centrifugal push and pull mechanism device can automatically open and close the shutter blade, the mechanical centrifugal opening mechanism is made of reinforced nylon raw material with high toughness injection molding processing, high strength, long life; The embedded steel parts of the guide rod are installed on the impeller, which enhances the reliability of the mechanism and effectively avoids the expansion and change of the nylon production process.
2) The outer frame material is made of ultra-thick galvanized sheet with strong corrosion resistance and CNC machine tool, with advanced technology and high precision; Adopt new twist stamping forming stainless steel fan, blade once stamping forming process, no deformation, no fracture, beautiful and durable, blade through high precision dynamic balance detection and correction, to ensure smooth operation of the fan without vibration, reduce noise, effectively improve the service life;3) The unique concave fan handling handle design not only effectively avoids the inconvenience in the process of loading, unloading and handling, but also does not affect the installation and appearance of the fan; V-type pulley is made of high strength aluminum magnesium alloy material hot die casting, light material, high strength; 4) High efficiency energy-saving moisture-proof motor, protection grade: IP55, insulation grade: F; Strict quality inspection procedures
