1,fin space4,6,9mm 2,evaporator factory 3,for high,medium and low cold room 4, ... for high temperature about 23 degree.Of the DL,DD and DJ series,their evaporators are made by copper tube ... The stainless steel tubes used for the electrical hot-melt frost system whose fin heating tube is directly into the ... resistance,appearance smooth,beautiful,generous. ceiling air cooled evaporator for cold storage