yuan4dFour-dimensional (4D) printing ceramics is a challenge due to their weak deformability. Here, the authors report a hydrogel-dehydration-driven direct 4D printingYuan Yuan. 1,550 likes · 15 talking about this. ON TRỰC TUYẾN 2424 ♀️ Whatsap : 0146728198 Teleg@ram : @YyMw77