1. Bitzer compressor condensing unit 2. pu sandwich panel 3. sliding door 4. electrical control box 1.Product ... (mm)Panelpolyurethane insulation panel,43kg/m3, fire retardantFoaming materialBASFPanel thickness50mm,75mm,100mm,150mm,200mmSteel coverstuccom embossed aluminum,painted galvanized steel,stainless ... building)Voltage220V/50HZ, 220V/60HZ, 380V/50HZ optional sandwich panel cold room