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File photo taken on March 6, 2017 shows Zhuang Yan, deputy to the 12th National People's Congress (NPC), speaking on a panel discussion with other deputies from northeast China's Liaoning Province in Beijing, capital of China. Zhuang Yan, 47, is a sanitation worker with Hengjie Sanitation Company in the Lishan District of Anshan city. In addition to performing well in her own work, Zhuang always thinks about how to better play her role as an NPC deputy. Whenever she goes to a northern city, Zhuang pays much attention to local curbs and their corrosion degree. Based on her research, Zhuang proposed to NPC about the use of environmental friendly snow-melting agent. (Xinhua/Yang Qing)
