How many kinds of silk can be divided into in the Zhou Dynasty?

Since the Zhou Dynasty from 1046 BC to 256 BC, Empress Zhou led Empress Zhou to hold the ceremony of "pro-silkworm" and "pro-silkworm", and held the ceremony of emperor pro-ploughing and queen pro-mulberry every New Year. The basic social picture of China for thousands of years is pastoral farming and mulberry weaving.

China had established a special sericulture management organization in the Zhou Dynasty. With the great economic development in the Warring States, Qin and Han Dynasties, silk production reached its peak, and silk can be produced almost everywhere. Silk varieties are also enriched, mainly divided into three categories: silk, silk and brocade.