The Fact About printing press That No One Is Suggesting
All-around 1230, Koreans invented a metal form movable printing utilizing bronze. The Jikji, published in 1377, may be the earliest known steel printed book. Variety-casting was applied, adapted from the method of casting coins. The character was Slice in beech Wooden, which was then pressed into a tender clay to form a mould, and bronze poured in