Answer:
paper and movable type
Step-by-step explanation:
The invention of paper was credited to China during the Eastern Han period (25–220 AD), and Movable type was first invented by Bi Sheng (990-1051) in China, and later perfected by Wang Zhen in 1927 in the second country.
Hence, these Chinese inventions: both paper and movable type, are major components of printed books and are considered to be vital for bookmaking process.