The wind power of the fan has nothing to do with the material of the fan blades, but is only related to its rotation speed, wind surface diameter, and fan surface inclination angle.
Relatively speaking, the higher the fan blade speed, the greater the air volume and wind pressure.
The larger the diameter of the fan blades, the larger the wind receiving area and the greater the air volume.
The inclination of the fan must also be designed appropriately. Too large or too small will affect the air volume.