DATES AND HOURS
Friday, 7 MAY 2021 9:00 AM - 5:30 PM
Saturday, 8 MAY 2021 9:00 AM - 5:30 PM
Sunday, 9 MAY 2021 9:00 AM - 4:00 PM
Supervisor：Wenzhou Bureau of Commerce; China Council for the Promotion of International Trade, Wenzhou Committee
Sponsors:Zhejiang Optical Association; Shanghai Donnor Exhibition Co., Ltd.
Organizers: Wenzhou Optical Association; Wenzhou Donnor Exhibition Co., Ltd.; Wenzhou Donnor Cloud Expo Co., Ltd.