There is nothing in Tangjiata. My mother's factory was in the 1980s, and behind Shanghai Huasheng Electric Fan Factory No.10 is Tangjiata. I spent my childhood there when it was still a farmland. I often go to my mother's factory to take a bath with my deskmate Xiao Wu, whose mother is also a colleague in my mother's factory. In my mother's factory, heavy stones were thrown at the farmland upstairs, which made farmers come to argue. There is also a stinking ditch, Tangjiatatou, near Huangxing Road. There used to be a Tangjiata primary school, which is long gone. There are towers that interfere with enemy radio stations. According to my parents, before and after liberation, it belonged to Baoshan County and later to Yangpu District. The renovation of the back of my mother's factory started from 1993, 1994. My mom's 10 electric fan factory moved to Songhua River Road around 1994. With the increase of urban population, commercial houses have been built in Shanghai and Tangjiata. My carefree childhood will remain in my memory forever.