建筑材料板块震荡走低，再升科技触及跌停

Group 1 - The construction materials sector experienced a significant decline, with several companies hitting their lower limits [1] - Zengsheng Technology (603601) reached its daily limit down, indicating strong selling pressure [1] - International Composite Materials (301526) and Sifang New Materials (605122) both fell over 8%, reflecting broader market weakness [1] Group 2 - Shandong Glass Fiber (605006) and Jiuding New Materials (002201) also saw notable declines, contributing to the overall downturn in the sector [1]