PEEK材料板块走弱，金田股份跌停

Group 1 - The PEEK materials sector experienced a downturn on August 21, with significant declines in stock prices [1] - Jintian Co., Ltd. hit the daily limit down, indicating a severe drop in its stock value [1] - Other companies in the sector, including Zhongyan Co., Ltd., Shuangyi Technology, Fuheng New Materials, Kaisheng New Materials, Huami New Materials, and Xinhang New Materials, also saw declines in their stock prices [1]