... water≤1.6Used for combined air handling unit, fan coil etc air conditioning devices2Φ18/Φ20Steel pipe winding with ... air handling unit, fan coil etc air conditioning devices3Φ16/Φ9.52/Φ12.7Copper tube with aluminium finBrine≤1. ... tube bending, punching fin, expanding, digressing, dryingWelding, leakage test, bending, inspection, packingNote: for further information please contact us copper tube heat ...