先进封装指数跌2%，成分股多数走低

Group 1 - The advanced packaging index declined by 2% on February 4, with most constituent stocks experiencing a drop [1] - Taiji Industry fell by 4.53%, Shenzhen Technology decreased by 4.05%, Tongfu Microelectronics dropped by 3.36%, Fuman Micro fell by 2.82%, and Huatian Technology declined by 2.72% [1]