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)

Sun Dawei, deputy director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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)

Sun Dawei, deputy director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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/Chen Jianli)

Combined photo shows Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answering 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/Chen Jianli)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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/Xue Yubin)

Combined photo shows Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answering 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, greet journalists before 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)

Zhi Shuping (2nd L), director of the General Administration of Quality Supervision, Inspection and Quarantine, greets journalists before 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/Xue Yubin)

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 (3rd L), director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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/Xue Yubin)

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)

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)

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, answers 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/Xue Yubin)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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/Chen Jianli)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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/Xue Yubin)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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, greets journalists 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/Chen Jianli)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, answers 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/Xue Yubin)

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, answers 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/Chen Jianli)

A journalist asks questions at a press conference by 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, 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)

Tian Shihong, head of the Standardization Administration of China, answers 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/Xue Yubin)

Tian Shihong, head of the Standardization Administration of China, answers 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/Xue Yubin)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, communicates with journalists after 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/Xue Yubin)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, attends 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/Xue Yubin)

Zhi Shuping, director of the General Administration of Quality Supervision, Inspection and Quarantine, leaves after 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/Xue Yubin)