低价股盘初跳水，首开股份闪崩逼近跌停，上海建工、美邦服饰、青山纸业均触及跌停。

Group 1 - The stock prices of low-priced shares experienced a significant drop at the beginning of trading, with Shouke Co., Shanghai Construction Group, Meibang Fashion, and Qingshan Paper all hitting their daily limit down [1] - Shouke Co. faced a sharp decline, approaching the daily limit down threshold [1] - Other companies such as Shanghai Construction Group, Meibang Fashion, and Qingshan Paper also reached their daily limit down, indicating a broader market trend affecting low-priced stocks [1]