A staff member introduces a folk custom item at the Zhanggezhuang folk custom museum in Zhanggezhuang town of Yantai city, East China's Shandong province, June 7, 2018. The Zhanggezhuang folk custom museum, built in 2012, displays the local folk custom items such as farming, marriage and daily necessities. [Photo/Xinhua]

A staff member introduces folk custom items for visitors at the Zhanggezhuang folk custom museum in Zhanggezhuang town of Yantai city, East China's Shandong province, June 7, 2018. The Zhanggezhuang folk custom museum, built in 2012, displays the local folk custom items such as farming, marriage and daily necessities. [Photo/Xinhua]