钢铁板块午后拉升，武进不锈直线涨停

Group 1 - The steel sector experienced a significant afternoon rally, with Wujin Stainless Steel (603878) hitting the daily limit up, indicating strong investor interest [1] - Shougang Corporation (000959) saw an increase of over 4%, reflecting positive market sentiment towards the company [1] - Other companies in the sector, including Liugang Co., Ltd. (601003), Hualing Steel (000932), and New Steel Co., Ltd. (600782), also experienced upward movement in their stock prices, suggesting a broader trend in the industry [1] Group 2 - There is a notable influx of dark pool capital into these stocks, indicating increased trading activity and potential investment interest [1]