Staff members from the local emergency management center carry out inspection on production facilities to ensure production safety in Changxing County of Huzhou, east China's Zhejiang Province, Nov. 30, 2020. (Xinhua/Xu Yu)

Staff members from the local emergency management center carry out inspection on production facilities to ensure production safety in Changxing County of Huzhou, east China's Zhejiang Province, Nov. 30, 2020. (Xinhua/Xu Yu)

Staff members from the local emergency management center carry out inspection on production facilities to ensure production safety in Changxing County of Huzhou, east China's Zhejiang Province, Nov. 30, 2020. (Xinhua/Xu Yu)

Staff members from the local emergency management center carry out inspection on production facilities to ensure production safety in Changxing County of Huzhou, east China's Zhejiang Province, Nov. 30, 2020. (Xinhua/Xu Yu)