造纸板块8月28日涨0.8%，齐峰新材领涨，主力资金净流出1.92亿元

Group 1 - The paper sector increased by 0.8% on August 28, with Qifeng New Materials 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] Group 2 - On that day, the paper sector experienced a net outflow of 192 million yuan from main funds, while retail investors contributed a net inflow of 140 million yuan [2] - Speculative funds saw a net inflow of 52.2 million yuan into the paper sector [2]