Tag results for reinforcement
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Why Tunnels Don039t Collapse
Bookmarked 306 weeks ago by videosift How simple reinforcement is used to prevent collapse of rock tunnels. Join Dollar Shave Club for only $5 at http://www.dollarshaveclub.com/PracticalE |
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Useful Dog Tricks 3 performed by Jesse
Bookmarked 617 weeks ago by videosift http://www.arizonafoothillsmagazine.com/dog-days-of-summer-2012/voting/37.html Please help VOTE Jesse "Arizona's Favorite Dog" at the l |