... .Work Pressure:0.2~3.1MPa 4.Fin space:1.2~3.5mm 5.Tube Diameter:7,7.94,9.52,12 ... to Europe,USA, Japan and Middle east etc. Tools List : Fin TypeCopper Tube O.D.(mm)Row Space(mm)Hole Space(mm ... as per customized samples or drawing.14.producing procedure: tube bending, punching fin, expanding, digressing, dryingWelding, leakage test, bending, inspection, packingNote: for ...