... TubeCarbon Steel TubeCarbon Steel TubeAll Size Available5~15FPIStainless Steel TubeStainless Steel TubeAlloy Steel MaterialCopper &Copper Alloy TubeAlloy Steel MaterialCopper &Copper Alloy TubeMonometallic Fin TubeLow Fin TubeCarbon Steel, stainless steel, titanium ... ~402~9FPI Extruded Fin tube(Aluminium, copper, brass, cupronickel, carbon steel, stainless steel, titanium, etc. )