3D printed houses seen in China's Suzhou(3/4)

A visitor walks in the villa built by 3D printing technology in Suzhou industrial park of east China's Jiangsu province, Jan 18, 2015. By using the technology, a stand-along villa and a six-story full-sized building have been printed out here recently. The walls of these houses were created by giant 3D printers which adding successive layers of material to form the shape. And the material is made from construction wastes. (Xinhua/Pei Xin)