Shandong Donghong Pipe Industry Co.Ltd(603856) was surveyed by four institutions on January 19, 2022. Among them, there are three fund management companies and one life insurance company. Based on this research event, we found that the company's main capital flow showed a net outflow of 7.0242 million yuan in the last five trading days. In the trend dimension, the stock prices were running above the 10th and 20th lines, and the market's willingness to go long increased.