China Daily on Twitter: "The first 3D-printed library finished construction in #Shanghai. Shaped like a comma, this structure is the latest addition to an innovative park that already features a 3D-printed bridge. #
![View World's Longest Printed Concrete Bridge Put Use Wisdom Bay – Stock Editorial Photo © ChinaImages #233340824 View World's Longest Printed Concrete Bridge Put Use Wisdom Bay – Stock Editorial Photo © ChinaImages #233340824](https://st4.depositphotos.com/21607914/23334/i/1600/depositphotos_233340824-stock-photo-view-world-longest-printed-concrete.jpg)
View World's Longest Printed Concrete Bridge Put Use Wisdom Bay – Stock Editorial Photo © ChinaImages #233340824
![View of the world's longest 3D-printed concrete bridge to be put into use at Wisdom Bay in Baoshan District, Shanghai, China, 8 December 2018. World Stock Photo - Alamy View of the world's longest 3D-printed concrete bridge to be put into use at Wisdom Bay in Baoshan District, Shanghai, China, 8 December 2018. World Stock Photo - Alamy](https://c8.alamy.com/comp/W5TWE9/view-of-the-worlds-longest-3d-printed-concrete-bridge-to-be-put-into-use-at-wisdom-bay-in-baoshan-district-shanghai-china-8-december-2018-world-W5TWE9.jpg)