Technology and Industry Porcelain ( Chinaware ) Porcelain ( Chinaware ) Iron production Iron production Gunpowder invented Gunpowder invented Earlier printing techniques refined Earlier printing techniques refined Moveable type by mid- 11 th century Moveable type by mid- 11 th century Yet complex Chinese ideographs make wood block technique easier Yet complex Chinese ideographs make wood block technique easier Naval technology Naval technology Compass Compass
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