[MATERIAL]: The blades are made of aluminum alloy
[SIZE]: Duct splice ring diameter: 4/6/8IN
[EASY TO USE]: According to the demand, the pipeline can be spliced to form the exhaust and air intake system
[ROTATING BLADE]: By adjusting the blade angle, the ventilation flow can be controlled, and it can also be used for wind protection
[APPLICATION]: It is used in kitchen, factory, food factory and other areas to form intake pipe or exhaust pipe system