... AIR BLOWER it's used for fish farms , farm tank , also used for air supply of spare part of package , massage bathtub ,. MINDER Vortex Blower ... is designed as per 110V/60HZ,220V/50HZ,220V/60HZ,380V/50HZ . The structure of the unit is ... used for fish farms , farm tank , also used for air supply of spare part of package , massage bathtub , glass products ,textile , electroplating ...