Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, his deputy Sun Dawei, and Tian Shihong, head of the Standardization Administration of China, take questions at a press conference on quality improvement for the fifth session of the 12th National People's Congress in Beijing, capital of China, March 14, 2017. (Xinhua/Zhao Yingquan)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, his deputy Sun Dawei, and Tian Shihong, head of the Standardization Administration of China, take questions at a press conference on quality improvement for the fifth session of the 12th National People's Congress in Beijing, capital of China, March 14, 2017. (Xinhua/Zhao Yingquan)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, his deputy Sun Dawei, and Tian Shihong, head of the Standardization Administration of China, take questions at a press conference on quality improvement for the fifth session of the 12th National People's Congress in Beijing, capital of China, March 14, 2017. (Xinhua/Li Xin)