Cooling Coil Heating Exchanger Copper Tube circles Aluminun Fins The features of heating ... and other refrigerants. Heating Cooling coils are constructed by Tubes: Copper, brass, cupronickel, carbon steel, aluminum or stainless steel, Fins ... : Aluminum, copper, carbon steel, stainless steel, Casings: Galvanized steel, aluminum, copper and brass alloysHeating cooling exchanger coil ...