... service life,large evaporation area,without harmful chemicals Evaporative cooling pad Features:1) Corrugated paper with the spatial crossing linking ... steel optional. Working PrincipleWhen the water cross the cooling pad, the water become water film on the surface of ... heightα: corrugated sheet angle (1) β: corrugated sheet angle (2) Pad 7090Pad 5090H (mm)1500, 1800, 20001500, 1800, 2000W (mm)600 ...