Product Name: Fin Tube Series Condenser Tubes with Aluminum Finned, base Tube of Copper Alloy, Stainless Steel, Carbon Steel, Brass, Copper-Nickel, CuNi, Nickel Alloy, Al-Fin Model NO.: Fin tube Connection Type: Seamless Cross-Section Shape: Round Medium: Liquid Diameter: 5-419mm Standard: ASTM, GB, API, DIN, JIS Material: Alloy Steel MPa Classfication: Ultra High Pressure Piping Temperature Classification: High Temperature Piping Trademark: Hehong / New Huahong Copper/NHH Transport Package: Wooden Case Specification: 1.2m*1.2m*1m Origin: China Product Description Finned tubes:1) Integral Low Finned TubesIncrease surface area of tubes, Improves efficiency of heat exchangers and more compact size. Inner Fin, Outer Fin or both Inner and Outer Fin are available.Tube Materials: Copper, Aluminum Brass, Copper Nickel and other Copper Alloy.Fin Pitch: 19 to 26 Fin Per Inch.2) Spiral Finned TubesWe produced Spiral High Finned Tubes base tube material: Copper and Copper Alloy Tubes, Duplex Tubes and other alloy.Tube Outside Diameter: from 10mm to 50mmFin Materials: Aluminum and Copper Mix. tubes.Length: up to 15 meter.Fin pitch: 7, 9, 10...13, 14 mm Fin Per Inch.Fin height: 6mm to 12mm