- Using high strength nylon swung roller to ensure the shutters opening and closing flexibly.
- The fan blades are self-clean stainless steel by punch forming with no dust, attractive and durable. The thickness of the fan blades is 1.2mm, surface finish BA grade.
- Fan belt pulley is adopted high strength aluminum-magnesium alloy by die-casting to bring the lighter weight, lower vibration, and higher corrosion resistance.
- Adding phase lack protection device on the motor, to ensure powered off of the motor when the electricity is lack of phase. The motor protection grade is IP55, insulation class: F grade.
- Imported French double-row bearing on the fan with special waterproof design, higher strength, lower noise, and longer working hours.
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