... crust,durable. 3.Evaporative large area 7090 type evaporative cooling pad: 1. Uses the new material and spatial crossing linking ... like chemicas. It is harmless andpoisenless while installation and use.It is safe, energy-saving, environmental protective, economic ... so onl, effectively meet customers' needs. TH series evaporative cooling pad/wet curtain: 7090 type7060 typeH mm1500,1800,20001500,1800, ...