Heat Exchange Finned Tube 1.Standard:ASTM,GB,etc 2.Process:Centrifugal Casting 3.ISO 9001:2008 Certificate Heat Exchange ... Finned Tube 1.Bare tube size: OD25mm-OD160mm 2.Fins Pitch: 4mm-30mm 3.Fins Height: 5mm-25mmType:1 ... .G fin, L fin, LL fin, I fin, E fin, KL fin2.Available Processing Technic: High-frequency welding/Extruded/L-foot ...