Our company has eight types of machine numbers
NO3.55,4,4.5,5,5.6,6,63.7.1
This fan can be made into two types:right-handed and left-handed.The impellerr otates clockwise and is called a rnght cyclone.Represented by "night',the impeller rotates counterclockwise and iscalleda left cgydone, roprosanted by 'lgft.
The outet posihon of the fan isrepresented by theoutet angle of the casing.and is made into a directional angle.
The transmission mode of the fan is type A.