... has one business hall(located in No.34, Huju South Road, Nanjing, covering about 500 square meters) and two factories( ... mainly manufacturing heat exchangers; another is in No.36, Runqi Road, Jiangning, Nanjing with an area of 4000 square meters, mainly ... ;4.reduced fan noise level during low ambient temperature conditions;5.energe saving due to improved cooling efficiency;6.short start impulse during ...