... to Europe,USA, Japan and Middle east etc. Tools List : Fin TypeCopper Tube O.D.(mm)Row Space(mm)Hole Space( ... mediumOperation pressure(MPa)Application1Φ16/Φ9.52/Φ12.7Copper tube with aluminium finCold/hot water≤1.6Used for combined ... products as per customized samples or drawing.14.producing procedure: tube bending, punching fin, expanding, digressing, dryingWelding, leakage test, bending, ...