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When did the seismic strengthening of Dashanzi Li Nan 12 Building in Chaoyang District begin to be rebuilt?

Not sure. Dashanzi Li Nan was built in 1956 by Beijing Qixing Real Estate Development Co., Ltd. The total number of buildings is 2 1, of which 1, 439 households. According to the news released by official website, Beijing Municipal Government, the time for seismic strengthening and reconstruction of Dashanzi Li Nan 12 building in Chaoyang District, Beijing has not been fixed. Residential property company is the property management center of Beijing Qixing Life.