... evaporatorceiling type evaporatorhigh,medium,low temprature evaporator evaporator:ORGREN air cooler series is suitable for high,middle,low temprature(+5 ... time.2.efficient fins, more evaporation area.3.mechanical tube expanding,tight connection between fins and copper pipe ... time.2.efficient fins, more evaporation area.3.mechanical tube expanding,tight connection between fins and copper pipe ...