HGF4-72(C) fiberglass centrifugal fan is made of polyester FRP material, which has the characteristics of high strength, light weight, good corrosion resistance, not easy to age, low noise, etc. It is an ideal new type of anti-corrosion fan. The impeller is water-cooled or oil-cooled and consists of a seat angle steel and a transmission motor. Its advantages are that it reduces the impact of corrosion on the motor, reduces the motor's reduction ratio, reduces the motor's load, and thus increases the service life of the fan.