... with aluminium finCold/hot water≤1.6Used for combined air handling unit, fan coil etc air conditioning devices2Φ18 ... 94/Φ7Copper tube with aluminium finR134a≤3.1Used for vehicle and vessel etc transportation devicesHEAT EXCHANGER PHOTOS:1. ... punching fin, expanding, digressing, dryingWelding, leakage test, bending, inspection, packingNote: for further information please contact us WORKSHOP PHOTOS: High ...