玻璃玻纤板块8月28日涨5.37%，国际复材领涨，主力资金净流入8.76亿元

Group 1 - The glass fiber sector experienced a significant increase of 5.37% on August 28, with International Composite leading the gains [1] - The Shanghai Composite Index closed at 3843.6, up 1.14%, while the Shenzhen Component Index closed at 12571.37, up 2.25% [1] - Key stocks in the glass fiber sector showed notable price increases, with International Composite rising by 19.97% to a closing price of 7.87 [1] Group 2 - The main capital inflow in the glass fiber sector amounted to 876 million yuan, while retail investors saw a net outflow of 546 million yuan [2] - The trading volume for International Composite reached 2.9013 million shares, contributing to a transaction value of 2.133 billion yuan [1] - Other notable performers included Honghe Technology, which increased by 10% to a closing price of 44.89, and Zhongcai Technology, which rose by 3.91% to 37.20 [1][2]