... ,on the stucture, inside the radiator tube,it have another finned, can aggrandize the area of radiator, expedite the heat exchange ... the market. scope of application:oil pressure system,lubrication system,transmission system, shipping oil perssure system,automobile oil pressure system,power ... Fan power2x48W Fan voltageAC110V/AC220V/380V/50HZ/60HZ hydraulic oil cooler with double fan AH0608TL-CA