How many centimeters is the wooden ruler of the ancient Ministry of Industry?

Warring States period 23. 1 cm

Western Han Dynasty 23.2-23.6 cm

Brand new 23.03 cm

Eastern Han Dynasty 22.95-23.80 cm

Three kingdoms Wei 23.80 cm

Three Kingdoms Wu 24.20 cm

Western Jin Dynasty 24. 15-24.50 cm

Heat dissipation on the back is 24.20cm.

Beiliang 24.50 cm

25.00-25.20cm south.

Northern Wei 30.90 cm

Sui 29.67 cm

Tang 29.00-30.40 cm

30.80-32.93 cm in Northern Song Dynasty

Southern Song Dynasty 27.00-28.30 cm

Ming 34.50-35.80 cm

Cyan 35.26-35.5 1 cm

Now one foot is 33.333 centimeters.