On November 18, 2006, Comrade Xi Jinping visited for inspection.
On July 28, 2007, Comrade Hu Jintao came to guide.
On March 31,2009, Comrade Zhang Dejiang visited for inspection.
On April 26, 2009, Comrade Jiang Zemin visited for inspection.
On June 25, 2010, Comrade Wen Jiaba came to guide.
On July 25, 2014, Comrade Li Qiang visited for inspection.
