Within three days, the continuous release of Changxin and Changsheng IPO news is of great significance, and many people cannot understand the difference between the two 1. Both are "domestic substitutes" for domestic independent giants, one in Hefei and one in Wuhan; 2. Changxin focuses on DR AM with a gross profit margin of 40%, while Changjiang focuses on NA RD with a gross profit margin of 30%. Both sub sectors are ranked fourth globally; 3. Changxin's revenue is expected to soar by around 200 billion yuan in the 26th year, comparable to that of a printing press, while Changjiang's revenue is expected to approach 100 billion yuan in the 26th year; 4. Changxin has more market-oriented characteristics, so it has greater flexibility and is likely to reach a trillion dollar market value after going public. Changjiu has slightly less flexibility than Changxin, and its market value of three to five hundred billion yuan after listing is relatively normal. However, in terms of "independence" advantage, Changjiang is more obvious. In other words, if "trade frictions" occur again, Changjiang will be more resistant to being beaten up