... bare fin 1.Type: Refrigerator Parts2.Model: CR-EP3.Copper Tube Diameter: 7mm,7.94mm,9mm,9.52mm,10mm,etc,grooved ... or smooth tube.4.Fin Type: louver,flat ,corrugated5.Aluminium Foil: hydrophilic or ... .We can supply products as per customized samples or drawing.13.Producing procedure: tube bending, punching fin, expanding, digressing, drying,Welding, leakage ...