Finned Heat Exchanger Tubes: copper, copper-nickel, steel, and stainless steel Casing: aluminum, steel, galvanized steel, etc. Finned Heat ExchangerGeneral Description: • Finned heat exchangers ... material on request):Tubes copper, copper-nickel, steel, and stainless steel Fins aluminum, copper, stainless steel, and steel Casing aluminum, steel, galvanized steel, and stainless We have accumulated ...