Attendees experience equipment during the 2019 World Industrial Internet Conference (WIIC) in Qingdao, east China's Shandong Province, July 25, 2019. The three-day-long WIIC kicked off here on Thursday. (Photos: Xinhua/Li Ziheng)

An attendee experiences equipment during the 2019 World Industrial Internet Conference (WIIC) in Qingdao, east China's Shandong Province, July 25, 2019. The three-day-long WIIC kicked off here on Thursday.

Attendees are seen during the 2019 World Industrial Internet Conference (WIIC) in Qingdao, east China's Shandong Province, July 25, 2019. The three-day-long WIIC kicked off here on Thursday.