午间涨跌停股分析：57只涨停股、14只跌停股，有色·钨概念活跃，翔鹭钨业5天3板，章源钨业2连板

Group 1 - A-shares experienced significant market activity with 57 stocks hitting the daily limit up and 14 stocks hitting the limit down on February 12 [1] - The tungsten sector showed notable performance, with Xianglu Tungsten Co. achieving three consecutive limit ups in five days, and Zhangyuan Tungsten Co. achieving two consecutive limit ups [1] - ST Jinglan (rights protection) achieved ten consecutive limit ups over 14 days, while ST Zhongdi (rights protection) recorded six consecutive limit ups [1] Group 2 - Several stocks, including Dawi Technology and Zhangyue Technology, achieved four consecutive limit ups, while Haimass Data recorded three limit ups in five days [1] - ST Guohua faced a continuous decline with nine consecutive limit downs, and ST Cuihua (rights protection) experienced three consecutive limit downs [1] - Other stocks such as ST Yuanshang and Hengdian Film & Television also faced consecutive limit downs, indicating a challenging market environment for these companies [1]