... : +86-13793452645TEL: +86-534-2299957 FAX: +86-534-2299282http://www.brightaircon.com/ BRIGHT AIR CONDITIONING CO., LTD.Add:No.3379, ZHONGDA INDUSTRIAL ... ROAD,DEZHOU ECONOMIC DEVELOPMENT ZONE 253022,SHANDONG, P.R.CHIN********************************************************************** Sell and tube heat exchanger