Name of working class in Tianjin No.19 Middle School. Tianjin No.19 Middle School was founded in 1994, with senior middle schools, junior middle schools and primary schools. Under the leadership of Tianjin Municipal Education Commission and Nankai District Education Commission, No.19 Middle School has made great progress, developed its own characteristics and achieved remarkable results, enjoying a high reputation in society and outstanding achievements in running schools. Comrade Zhang, secretary of the Municipal Party Committee, once spoke highly of Nankai School as an "authentic Nankai School".