Can Ningbo return social security? How much is the refund?

Can't go back. According to Ningbo's social security information, I know I can't return it. Ningbo, referred to as Ningbo for short, is a sub-provincial city and a city under separate state planning. It is a large city with the right to formulate local laws and regulations, the first batch of coastal open cities, the coastal city of China, the top city of Chinese mainland's comprehensive competitiveness 15, one of the five regional centers in the Yangtze River Delta, the economic center in the south wing of the Yangtze River Delta and the economic center of Zhejiang Province.