ST瑞和盘中跌停，上演“天地板”，成交额超1.5亿元。

Core Viewpoint - ST Ruihe experienced a significant drop, hitting the daily limit down, with a trading volume exceeding 150 million yuan [1] Group 1 - The stock of ST Ruihe faced a "天地板" situation, indicating extreme volatility in its trading performance [1] - The total transaction amount for ST Ruihe surpassed 150 million yuan, reflecting heightened market activity [1]