... ,600mm Thickness:100,150,200,300mm cooling pad wall 1) Corrugated paper has high intensity structure, and absorbing water to ensure drip ... of aluminum alloy, PVC and galvanized boardCooling dry and hot air is drawn by fan through the wet cooling pad paper, the water ... with indoor hot air,in air, makes indoor air fresher, and improves air quality in working environment. greenhouse cooling pad wall