中字头股票震荡走高，中信重工、中国铁物、中国一重涨停

Group 1 - The core viewpoint of the news is that "中字头" stocks experienced a significant upward trend on January 22, with several companies reaching their daily limit increase [1] Group 2 - Companies such as 中信重工 (China CITIC Heavy Industries), 中国铁物 (China Railway Materials), and 中国一重 (China First Heavy Industries) all hit the daily limit increase [1] - Other companies that saw gains include 中国软件 (China Software), 中国核建 (China Nuclear Engineering), 中国通号 (China Communications Technology), 中钨高新 (China Tungsten High-tech), and 中稀有色 (China Rare Earth) [1]