Catalog: Science & Technology on CD and SRIM Catalog | |
| and boilers heat exchangers heat pumps heat pipes energy management economics ... use 81 for fuel tanks use 81c for cooling towers use 97j 41a-computer aided ... | |
| and boilers heat exchangers heat pumps heat pipes industrial security ... use 81g for fuel tanks use 81c for cooling towers use 97j for nuclear security use ... including hoists conveyors and pumps see also 41c and 41j srim and science ... | |
