... 4.CE ,ISO9001:2 Workshop industrial evaporative air cooling system 1.Parameter: Voltage/frequency: 380V/50HZ Air flow: ... water supply and drainage function.Automatic control water-supply system,open type water theif,divide water fluency,automatic clearing ... all the places need cooling or ventilation, such as supermarket, workshop,office,hospital...Hangzhou Xin Beili Environmental Science&Technology ...