middle east market. According to the query of Changchun local treasure, if you want to buy hazel mushrooms, you can only go to the Middle East market in Changchun to buy them, and only this one in Changchun can buy them. Changchun City, referred to as "Chang" for short, also known as "Spring City in the North" and called Xidu and Chaachong in ancient times, is a prefecture-level city, a provincial capital, a sub-provincial city, a core city of Harbin-Changzhou urban agglomeration, a second-tier city, and one of the central cities and an important industrial base in Northeast China approved by the State Council.