
Ceiling Attic Intake Ventilation Cooling Exhaust Fan. Hot-Dip Galvanized Plate: Adopts 275g/m2 galvanized layer for rust resistance and durability. Stainless Steel Blades: Made of 430 Stainless Steel with 1.2mm thickness for large airflow and no deformation. Customizable Motor: Motor voltage and frequency can be customized to meet specific requirements. Dynamic Balance Testing: Blade weight tolerance controlled within 1g for smooth running and low noise. High-Quality Bearings: Imported double-row bearings with waterproof design for long service life. Mitsuboshi Belts: Uses Japanese Mitsuboshi belts for long service life and maintenance-free operation. 90-Degree Opening System: Ensures lowest air resistance and maximum air volume with high-quality nylon and stainless steel. OEM/ODM Services: Offers full customization, minor customization, and flexible customization options.