Visitors sample chestnuts at a booth during the 2017 Taishan (BGX City) of Agricultural and Sideline Products Expo on Sept 6 in Tai'an, Shandong province. [Photo provided to China Daily]

Local tea products are displayed during the 2017 Taishan (BGX City) of Agricultural and Sideline Products Expo on Sept 6 in Tai'an, Shandong province. [Photo provided to China Daily]