A 3D printer shapes a choclate creation during the opening day of the Brussels Chocolate Fair in Brussels, capital of Belgium, on Feb. 10, 2017. (Xinhua/Gong Bing)
A 3D printer shapes a choclate creation during the opening day of the Brussels Chocolate Fair in Brussels, capital of Belgium, on Feb. 10, 2017. (Xinhua/Gong Bing)