... .2~3.5mm 5.Tube Diameter:7, 7.94 We are a professional heat exchanger, condenser, evaporator and heat pump manufacturer ... 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 ...