... 1800,2000mm Width: 300,600mm Thickness:100,150,200mm high quality evaporative cooling padModel no.: 5090 Features: 1) ... α 45° β 45° Features:1)Special ripper process,high structure strength ,corrosion-proof and long circle life2) Fine ... for heating exchanging between weather and air4) Outer frame can be ale of aluum alloy, PVC ... by indoor air in working environment. high quality evaporative cooling pad