1.copper tube Dia: 7mm-10mm 2.fin type:louver,flat,corrugated 3. ... : ISO,ROHS 4.with or without fan series air cooled big condensor with fan or without fan series 1. material :copper ... products as per customized samples or drawing.14.producing procedure: tube bending, punching fin, expanding, digressing, dryingWelding, leakage test, bending, inspection ...