午间涨跌停股分析：45只涨停股、4只跌停股，有色·钨概念活跃，中钨高新2连板

Core Viewpoint - The A-share market showed significant activity with 45 stocks hitting the daily limit up and 4 stocks hitting the limit down, indicating a strong bullish sentiment in certain sectors [1] Group 1: Sector Performance - The non-ferrous metal sector, particularly tungsten, was notably active with Zhongtung High-tech achieving two consecutive limit ups [1] - The copper foil and copper-clad laminate sectors also strengthened, with Honghe Technology achieving two consecutive limit ups and Copper Crown Copper Foil hitting the limit up [1] Group 2: Continuous Limit Up Stocks - *ST Wanfang achieved 11 limit ups in 13 days, while ST Zhongdi recorded 9 consecutive limit ups [1] - Pingtan Development had 7 limit ups in 9 days, and Shikong Technology achieved 6 consecutive limit ups [1] - Other notable performers included *ST Baoying with 4 limit ups in 5 days, Shanghai Electric with 3 limit ups in 7 days, and Fangda Carbon and Haixing Electric with 2 consecutive limit ups [1] Group 3: Continuous Limit Down Stocks - *ST Yuancheng faced 13 consecutive limit downs, while ST Erya and ST Keli Da both recorded 2 consecutive limit downs [1] - *ST Sailong also hit the limit down [1]