AOPA-China Fly-In 2017 air show opens in SW China's Guizhou

Aircrafts perform on the opening day of the AOPA-China Fly-In 2017 air show in Huangping county, Southwest China's Guizhou province, July 21, 2017. The AOPA-China Fly-In 2017 air show opened on Friday. [Photo/Xinhua]