Diy színes nyomtató
Gelsonlab HSTM-067 Education Science Toys barkács színes nyomtató
Diy színes nyomtató uses the printing method of red and blue copy paper, and completes the printing experiment by roller, tracing pen, cartoon paper, cartoon film and other tools. Understand the development history of printing in China (engraving printing - movable type printing - cylinder printing)