钢铁板块盘初拉升，大中矿业触及涨停

Group 1 - The steel sector experienced a significant rally at the beginning of trading, with major mining companies hitting their upper trading limits [1] - Zhongjin Mining reached its upper limit, indicating strong investor interest and confidence in the company [1] - Fangda Special Steel saw an increase of over 7%, reflecting positive market sentiment towards the company [1] Group 2 - Other companies such as Ordos, New Steel Co., and Liugang also experienced gains, suggesting a broader positive trend in the steel industry [1]