Group 1 - The stock of Dongliyuan closed at 6.75 yuan on July 29, down 0.11 yuan, a decrease of 1.60% from the previous trading day [1] - The trading volume for the day was 591,200 hands, with a total transaction value of 402 million yuan [1] - The stock opened at 6.89 yuan, reached a high of 7.13 yuan, and a low of 6.61 yuan, resulting in a price fluctuation of 7.58% [1] Group 2 - Dongliyuan operates in the power equipment industry, focusing on the research, development, production, and sales of power electronic technology-related products [1] - The company's products are primarily used in communication, electric power, and industrial control sectors [1] Group 3 - On July 29, the net outflow of main funds was 2.0688 million yuan, accounting for 0.05% of the circulating market value [1] - The turnover rate for the day was 9.69%, indicating active market trading [1]