... corrosion resistant, prolonged service life.4.Fine penetrability and water absorptivity ensure water evenly wet the complete cooling pad wall.5 ... the largest evaporation surface area for heat exchange of water and air. 7.Fine filtration can protect efficiently against the ... & abroad and sell well in China, Southeastern Asia, Africa, Mid East, Europe and USA, etc. 7090/5090 water cooled air cooler ( ...