Inquiry (采购产品): Heat Exchanger for waste water sludge We currently have four Elanco spiral heat exchangers that have been rusted through the internal heat side coil. Do yo all repair such units and do you sell such a unit. Please call 660-748-7316 **** Hidden Message ***** Brian Paulsen Princeton, MO 64683 USA Company: Premium Standard Farms Phone: 660-748-7316 E-mail: brian.paulsen@psfarms.com **** Hidden Message ***** brian.paulsen@psfarms.com