... 2.Fins Pitch: 4mm-30mm 3.Fins Height: 5mm-25mm heat exchanger extruded finned tube 1.G fin, L fin, LL fin ... TubeMonometallic Fin TubeLow Fin TubeCarbon Steel, stainless steel, titanium, copper, brass, nickel alloy, etc.--9.52~4012,16,19 28 FPI ... -E TubeCorrugated TubeAll Kind of Material--6.35~402~9FPI heat exchanger extruded finned tube