1.copper tube:grooved or smooth tube 2.fin:hydrophilic or bare fin 1.Type: Refrigerator Parts2.Model: CR-EP3.Copper Tube Diameter: 7mm, ... 7.94mm,9mm,9.52mm,10mm,etc,grooved or smooth tube ... products as per customized samples or drawing.13.Producing procedure: tube bending, punching fin, expanding, digressing, drying,Welding, leakage ...