A 3D-printed bridge, measuring 15.25 meters long, 3.8 meters wide and 1.2 meters high, opens in a public park in Shanghai, January 11, 2019. Designed and made by local teams using polymer materials, the landscape bridge was completed in 35 days, with an expected service life of 30 years. [Photo: VCG]

A 3D-printed bridge, measuring 15.25 meters long, 3.8 meters wide and 1.2 meters high, opens in a public park in Shanghai, January 11, 2019. Designed and made by local teams using polymer materials, the landscape bridge was completed in 35 days, with an expected service life of 30 years. [Photo: VCG]

A 3D-printed bridge opens in a public park in Shanghai, January 11, 2019. The photo shows the devices used to create this bridge. [Photo: VCG]

A 3D-printed bridge, measuring 15.25 meters long, 3.8 meters wide and 1.2 meters high, opens in a public park in Shanghai, January 11, 2019. Designed and made by local teams using polymer materials, the landscape bridge was completed in 35 days, with an expected service life of 30 years. [Photo: VCG]