طابعة ملونة DIY
Gelsonlab HSTM-067 ألعاب العلوم التعليمية طابعة ألوان DIY
طابعة ملونة DIY 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)