Position	Website	Change	Thumbnail
1	engineeringtoolbox.com - Engineering ToolBox Tools and Basic Information for Design, Engineering and Construction of Technical Applications	0
2	freecalc.com	5
3	harvelduct.com - Duct Pipe | PVC Duct Sizes | Duct Systems	3
4	gobookee.org - Free books and manuals - GoBookee.org Free books and documents search with fast and relevant results better than any online library.	0
5	omega.com - Sensors, Thermocouple, PLC, Operator Interface, Data Acquisition, RTD Your source for process measurement and control. Everything from thermocouples to chart recorders and beyond. Temperature, flow and level, data acquis...	-3
6	thermaflex.net	26
7	eng.utoledo.edu - College of Engineering The University of Toledo College of Engineering provides world class undergraduate and graduate study programs in engineering research.	-3
8	pipingnews.com - Piping News Report <bold>This newsletter provides information regarding piping design and piping engineering as well as steam system design and available job assi...	3
9	buildingscience.com - Building Science Corporation	20
10	answers.yahoo.com - Yahoo! Answers - Home Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights a...	0
11	learningpod.com	0
12	hvacquick.com - HVACQuick - residential residential products	9
13	engineersedge.com - Engineers Edge - Design, Engineering & Manufacturing Solutions Engineers Edge - Total Design, Engineering & Manufacturing Resouces	28

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