家电零部件板块1月28日跌2%，毅昌科技领跌，主力资金净流出11.39亿元

Group 1 - The home appliance parts sector experienced a decline of 2.0% on January 28, with Yichang Technology leading the drop [1] - The Shanghai Composite Index closed at 4151.24, up 0.27%, while the Shenzhen Component Index closed at 14342.9, up 0.09% [1] - Key stocks in the home appliance parts sector showed varied performance, with Samsung New Materials rising by 8.28% to a closing price of 17.00 [1] Group 2 - Yichang Technology saw a significant drop of 9.94%, closing at 7.88, with a trading volume of 635,700 shares and a turnover of 510 million [2] - The sector experienced a net outflow of 1.139 billion from main funds, while retail investors saw a net inflow of 1.001 billion [2] - The main fund inflow for Hejing Technology was 44.76 million, while retail investors had a net outflow of 67.77 million [3]