风电设备板块12月19日涨0.2%，中环海陆领涨，主力资金净流出6.62亿元

Group 1 - The wind power equipment sector increased by 0.2% compared to the previous trading day, with Zhonghuan Hailu leading the gains [1] - The Shanghai Composite Index closed at 3890.45, up 0.36%, while the Shenzhen Component Index closed at 13140.22, up 0.66% [1] Group 2 - The main funds in the wind power equipment sector experienced a net outflow of 662 million yuan, while retail investors saw a net inflow of 704 million yuan [2] - The net outflow from speculative funds was 41.9 million yuan [2]