... ,spinning mill, chemical engineering, medical treatment, construction etc.For this type of fan, we have Diameter DimensionsJFD-90HE: 900mm 1000*1000*400mmJFD ... .The seven strict quality inspection, vibration test, concentric performance test, fan blade rotation test, the efficiency test and the motor current ... *40054JFD-1250HE12504201.12.8400001380*1380*40079 First class negative pressure cooling fan