Stock 000825 TISCO stainless steel problem

This is a special regulation of Shenzhen Stock Exchange, which aims to avoid artificially manipulating the stock price, because when the market closes, most retail investors will either drop their orders or stop trading, which makes it easy for dealers to manipulate the stock price. Taigang Stainless is listed on the Shenzhen Stock Exchange, of course, this will happen, but there is no such requirement on the Shanghai Stock Exchange.