Oil . Air . Water Cooling & Radiators Materials: Aerospace-use aluminum-based compound materials Cooling sources: Natural wind or electric fan Cooling fluid: Water． air． oil (cooling or heating agent) Electric fan voltage: 12V / 24V / 110V & 220V Applications: A :Controls and cools oil temperature for a wide array of industrial machinery B : Lubricates and cools various high-speed rotating shafts, camshafts,  crankshafts, gearboxes, and precision slideways C : Cools engine oil in automobiles, motorcycles, and industrial motor vehicles, as well as any objects that need heat exchangor heat dissipation Features: ●Low cost: Requires no coolant, compressor, or water tower; maintenance free ●User-friendly: Resists high pressure and lowers temperature rapidly; sturdy, safe,and compact ●Environmental friendly: Creates no pollution, Consumes little electricity ●Best choice: Multipurpose and high-efficiency