... homopolymer engineering material,add flexibilizer, UV-cut resisitant. 4).Complete protection, over-current protection, open phase protection, undervoltage ... and drainage function. 5).Automatic control water-supply system,open type water theif,divide water fluency,automatic ... environment.8.Specification of XK-23S/side evaporative cooling system:9.Installation method of XINGKE evaporative air cooler: ...