People pass by the 3D-printed retractile bridge in Shanghai on Monday. Photo: Yu Xi/GT. China’s first 3D-printed retractile bridge has been unveiled in Shanghai, seen as a move fo …
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The Shanghai News
People pass by the 3D-printed retractile bridge in Shanghai on Monday. Photo: Yu Xi/GT. China’s first 3D-printed retractile bridge has been unveiled in Shanghai, seen as a move fo …
( read original story …)