Business. It is open during the Spring Festival. Because of the large flow of people, the Muslim food street in the northwest corner of Tianjin is open during the Spring Festival. Tianjin, also known as Jingu and Jinmen, is the people of China, a provincial administrative region, a municipality directly under the Central Government, a national central city, a megacity and an economic center of the Bohai Rim region approved by the State Council.