钢铁板块强势拉升，凌钢股份涨停，柳钢股份斩获4连板

Group 1 - The steel sector experienced a strong rally on July 4, with notable stock performances including Lingang Co. hitting the daily limit, Liugang Co. achieving four consecutive limit-ups, and Angang Steel rising over 6% [1] - Liugang Co. has not identified any media reports or market rumors that could impact its stock price, and its fundamentals remain unchanged, with major shareholders holding 83.01% of the company [1] - The Central Financial Committee emphasized the need to promote the orderly exit of outdated production capacity and improve product quality, which may positively influence the steel sector's profitability [2] Group 2 - There are reports of increased environmental restrictions and production cuts in Tangshan, with approximately half of the steel mills indicating they have received notifications regarding these measures [1] - The steel sector's profitability is expected to recover to historical average levels, and the price-to-book ratio (PB) of steel stocks may also improve as a result [2]