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Entrepreneurs Find New Ways to Address Housing Shortages

Housing shortages affect both developed and developing countries, so entrepreneurs are trying to find new ways to solve the problem. They're being assisted by 3-D printers, which are rapidly entering all levels of industry, including construction. Last December in Nanjing, the Chinese 3-D Research Printing Institute opened an exhibition in a house built with elements created by a giant 3-D printer. The machine extrudes layer upon layer of concrete-based material, creating...

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