Keywords: Shell heat exchanger LS.JPG Shell heat exchanger LS hr wikipedia 2007-10-04 Armchoir wikipedia hr Armchoir Original upload log page hr wikipedia Shell_heat_exchanger_LS JPG 2007-10-04 16 30 Armchoir 902×464×8 59233 bytes <nowiki>Shell heat exchanger - designed by Armchoir</nowiki> Shell and tube heat exchangers |