... ,1800,2000mm Width: 300,600mm Thickness:100,150, 5090 greenhouse evaporative cooling padevaporative cooling padModel no.: 5090 Features: 1) H: 1,500mm,1 ... be alternative of aluminum alloy, PVC and galvanized boardCooling system is with its cooling pad paper. There is a thin layer of ... air fresher, and improves air quality in working environment. 5090 evaporative cooling pad system greenhouse