... 1 Compressor: Bitzer, Copeland etc for choice, 1.2 Condenser units: water cooled, air cooler or water and air ... 3.1 Material: polyurethane (PU), metal sheet. 3.2 Density of PU: 38~40 kg/m3, 40~42kg/m3, ... sheet or mixed together for choice. 3.4 Thickness of panel: 75mm, 100mm, 110mm, 150mm and 200mm for ... and fruit. AIR COOLER *Apply to all kinds of freezer,cold storage and ice library.*IP44 protection ...