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collapsed mine sealed bodies still inside - cbs news
collapsed mine sealed bodies still inside. sealed the crandall canyon mine's three main passageways with walls of concrete block in early october. u.s. manufacturers group hacked by china
cement block making machine manufacturers & suppliers
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world's first 3d-printed apartment building constructed in
world's first 3d-printed apartment building constructed in china. a chinese company has successfully 3d printed a five-storey apartment building and a 1100 square metre villa from a special print
10 concrete homes that don't look like bunkers - cbs news
10 concrete homes that don't look like bunkers. here are 10 concrete homes that don't resemble concrete boxes. fort lauderdale florida china treats 2 people with a highly contagious form
mit designs 'invisible' floating wind turbines - cnet
mit designs 'invisible' floating wind turbines. professor schooled in oil exploration structures has designed a platform to hold turbines dozens of miles offshore. image: envisioning a floating