custom lift-up flaps book usage
According to the use of custom lift-up flaps book, it is generally divided into book printing, newspaper printing, advertising printing, banknote printing, map printing, packaging and decoration printing and special printing. Book printing is a kind of printing with large printing quantity and output value. Before the 1970s, letterpress printing was mainly used in type typesets, and after the 1970s, letterpress plates were gradually used in photosensitive resin plates. Since the 1990s,...