换电概念持续走强，勘设股份、中恒电气双双涨停

Group 1 - The concept of battery swapping continues to gain strength, with companies such as Kuan She Co., Ltd. and Zhongheng Electric both hitting the daily limit up [1] - Other companies including Ruikeda, Chaojie Co., Youfang Technology, Power Source, Maoshuo Power, and Tonghe Technology also experienced significant increases in stock prices [1]