What is the name of the northeast drinking hip flask?

Transparent hip flask. The use of green hip flask in Northeast China is a local cultural tradition, and all localities have retained the customs that have been formed, so it is a green hip flask. Northeast China refers to the region consisting of Liaoning, Jilin and Heilongjiang provinces and five allied cities in eastern Inner Mongolia. Referred to as the Northeast, it was called Qing Ji Erzhou, Yingping Erzhou, Liaodong, Liaohai and Guanwai in ancient times. It is the floorboard of the land in the northeast of China.