... 52/Φ7.94/Φ7Copper tube with aluminium finR134a≤3.1Used for vehicle and vessel etc transportation devices1. material :copper ... : 25*21.65MM and 12.7*19.05MM7. suitable for R134A, R22, R404A, R407C refrigerant and so on8. voltage: ... expanding, digressing, dryingWelding, leakage test, bending, inspection, packingNote: for further information please contact us Radiator: Workshop: Customized! aluminum fin ...