工程机械板块1月7日涨0.72%，邵阳液压领涨，主力资金净流入2.51亿元

Group 1 - The engineering machinery sector increased by 0.72% on January 7, with Shaoyang Hydraulic leading the gains at 20.01% [1] - The Shanghai Composite Index closed at 4085.77, up 0.05%, while the Shenzhen Component Index closed at 14030.56, up 0.06% [1] - Key stocks in the engineering machinery sector showed significant price movements, with Shaoyang Hydraulic closing at 41.33 and a trading volume of 340,600 shares, resulting in a transaction value of 1.284 billion yuan [1] Group 2 - The engineering machinery sector experienced a net inflow of 251 million yuan from main funds, while retail investors saw a net outflow of 165 million yuan [2] - Major stocks like Shaoyang Hydraulic had a net inflow of 25.2 million yuan from main funds, indicating strong institutional interest [3] - Conversely, stocks like LiuGong and Zhonglian Heavy Industry faced declines of 3.24% and 2.27%, respectively, reflecting a mixed performance within the sector [2][3]