... , aluminum ,galvanized plate2. aluminum foil: hydrophilic or bare3. fin type: louver fin or flat fin or corrugated fin4. copper pipe: diameter 7mm or ... , punching fin, expanding, digressing, dryingWelding, leakage test, bending, inspection, packingNote: for further information please contact us Condenser :Workshop: High-quality blue fin type refrigerator ...