Hot pot: a metal plate or pot installed above a heating device, used for cooking food or keeping warm on a dining table. In old China, restaurants usually liked to use copper chafing dish. Because copper transfers heat quickly, copper chafing dish will get hot soon.
Spring rolls: Spring rolls are traditional folk food in China. Popular in China, Jiangnan and other places. Houses other than those used by civil society for their own consumption are often used for entertainment. After the Tang and Song Dynasties, there was a custom of eating fresh lettuce on the day of beginning of spring. Cake is put on a plate, which is called spring cake. Originated in the Han Dynasty, it has a certain connection with the six episodes of New Year's Day. Therefore, the spring plate or spring disk is also called Sim. In the Ming and Qing Dynasties, lettuce, water safflower radish and cabbage can go here, so the whole activity is called "biting spring".
Reference: Network