Enthusiasts perform Guzheng, or Chinese zither, during Cangzhou Tourism Industry Development Conference in Suning County of Cangzhou City, north China's Hebei Province, Oct. 19, 2019. The ethnic music instrument industry in Suning of Hebei develops well in recent years, with over 60 relative companies producing more than 700,000 instruments every year. The instruments are sold both at home and abroad. (Xinhua/Yang Shiyao)