How to make porcelain technology mature?

During the 369 years from the Three Kingdoms period to the end of the Southern and Northern Dynasties, the porcelain-making technology invented by China in the Shang and Zhou Dynasties has matured, and the rough celadon that appeared in the Eastern Han Dynasty has turned into beautiful celadon and snow-like white porcelain. At that time, the porcelain industry had formed a situation of "blue in the south and white in the north", and new metal mines such as iron ore and copper ore were mined one after another, while the old ones expanded their mining scale. In many large-scale iron smelting workshops managed by the imperial court, the blast drainage method of the Eastern Han Dynasty was adopted.