... Steel TubeCarbon Steel Tube12.70~1601.5~7FPI0.8~3.2mm. ThicknessStainless Steel TubeStainless Steel TubeAlloy Steel MaterialAlloy Steel MaterialIntegral Copper ... &Copper Alloy TubeMonometallic Fin TubeLow Fin TubeCarbon Steel, stainless steel, titanium, copper, brass, nickel alloy, etc.--9.52~4012,16,19 ... Fin tube(Aluminium, copper, brass, cupronickel, carbon steel, stainless steel, titanium, etc. )