Orthotropic Websites

Mark Ketchum's Online Scrapbook

- ketchum.org

Home Page for Mark Ketchum of Berkeley California. Focus on bridge structures, thin shell concrete roofs, motorcycles, family, and friends.

20,770,859

$ 8.95

Composite Documents and Engineering Information

- abdmatrix.com

Web-centric composite-based repositories and composite analysis software. Quickly find and download composite documents.

12,121,334

$ 8.95

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