... -stage high pressure blower 1.high pressure blower with two-stage impellers. 2.high pressure blower with low noise 2JZ double-stage high pressure blower2JZ ... aboard.The fans have two-stage impellers.Featured by high pressure,low noise,rational design,nice outlook, and stable ... operation,the fans ar widely used for high pressure blowing in industries such as ancient furnance,glass,electroplating ...