Chinese companies have been known to build major real-estate projects very quickly. Now, one company is taking it to a new extreme.

Suzhou-based construction-materials firm Winsun New Materials says it has built 10 200-square-meter homes using a gigantic 3-D printer that it spent 20 million yuan ($3.2 million) and 12 years developing.

Rapid Construction, China Style: 10 Houses in 24 Hours – Corporate Intelligence – WSJ.