Primary school graduates in Quzhou City, east China's Zhejiang Province, used an ancient paper-making method and movable type printing to produce their own "graduate certificates." According to research, the traditional technique allows the paper to last for more than 2,800 years.
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3
Copyright © 2018 CGTN. Beijing ICP prepared NO.16065310-3