It might not exactly sound appealing to live in, but a Chinese company has constructed two buildings using a 3D printer that recycles industrial waste to form new building material.

Shanghai-based Winsun has been showing off the two neighboring projects, one an 1,100-square-metre villa, the other a six-story residential block, in the Chinese city of Suzhou. The residential block is the world's tallest 3D-printed building, according to the company.

It took Winsun a day to print out one level of the residential block, and then five more to put the level together. As for the villa, both the interior and exterior of the home were created using the company's 3D printing tech.

Winsun was founded in 2002, and specializes in 3D printers designed for construction. Last March, it announced it would become a "3D printing home" company and in the subsequent month printed out a set of 10 houses in one day, according to China's state-run Xinhua News Agency.

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