Features. Sanjiaji is a local characteristic market in Wujin District, Changzhou City, Jiangsu Province, which is characterized by selling tea, catering and entertainment. Due to its unique geographical location, close to the famous Jintan tea producing area in Changzhou, rich tea resources and active tea culture atmosphere, it has attracted a large number of tea lovers and buyers to come to Sanjiaji to buy. Sanjiaji Town, belonging to Guanghe County, Linxia Hui Autonomous Prefecture, Gansu Province, is located in the east of Guanghe County, facing Xindian Town, Lintao County, Dingxi City in the east, Shuiquan Township in the south and Qijiaji Town in the west across the river.