... We can make according to your requirements! DS-H22 OEM Copper coil heat exchanger IntroductionFin tube heat exchangers: ... , locomotive air conditioner, other series air conditioning, refrigerator, cold storage, etc. Manufacturing processpipe, fins punch, through films ,expanding, ... dried skim, welding, leak, assembly painting. Cold media Fins mold Details Thank you for your inquiry! DS-H22 ...