Position	Website	Change	Thumbnail
1	constructionknowledge.net - Construction Knowledge.net - a free resource for building and construction information free construction knowledge and advice for construction engineers, superintendents and foremen to help them build buildings with rules of thumb	2
2	sketchup.engineeringtoolbox.com - Engineering ToolBox - SketchUp Edition SketchUp - Engineering Tools and Components	0
3	engineeringtoolbox.com - Engineering ToolBox Tools and Basic Information for Design, Engineering and Construction of Technical Applications	-2
4	sigmaaldrich.com - Sigma-Aldrich: Analytical, Biology, Chemistry & Materials Science products and services.	1
5	turnersteelcoinc.com - Welcome to the Turner Steel Home Page	0
6	mckinseysteel.com - McKinsey Steel & Supply of Florida, Inc.	4
7	tmtco.com - Thompson Metals Tubing, Laser Cutting, Plasma Cutting, Precision CNC Cutting TMT is a steel service center specializing in precision CNC laser cutting, plasma cutting, oxy-fuel cutting and other services include Blanchard grind...	-1
8	answers.com - Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias Answers.com: Wiki Q&A combined with free online dictionary, thesaurus, and encyclopedias. Ask questions, get answers.	0
9	engineering.com - ENGINEERING.com | The Engineer's Ultimate Resource Tool Engineering information and connections for the global community of engineers. Find engineering games, videos, jobs, disciplines, calculators and arti...	0
10	en.wikipedia.org - Wikipedia, the free encyclopedia	-2
11	aksteel.com - AK Steel	34
12	matweb.com - Online Materials Information Resource - MatWeb Material property database with data sheets of thermoplastic and thermoset polymers such as nylon, polycarbonate, polyethylene; metal alloys, aluminum...	0
13	steelwheelweights.com	6
14	steeljoist.org - Steel Joist Institute - Home	0

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