Have a nice day!. we are a leading manufacturer in evaporative air cooler for both home/office and industrial use(from 1000M3/H upto 100000M3/H) at present, our lab is only one our National Lab for test cooler in china. we are strictly enforces ISO9001, ISO14001, OHSAS18001 and so far, gained more than 40patents of national invention, utility models and industrial design, our product had pass CE, SASO, BV etc, and successfully exported more than 70 countries and regions, including Europe, America, Australia, Japan, Korea, Middle East, Brazil, Southeast Asia, and Africa etc. With years' development, Aolan had grown into a company who occupies the wide international market share, u can view details with link: http://www.aolan-china.com for more details. I send some pictures of our cooler for your reference as attachment Hope we have a cooperate opportunity in future! Waiting for your early reply