金属新材料板块12月17日涨0.6%，江南新材领涨，主力资金净流出2.33亿元

Group 1 - The metal new materials sector increased by 0.6% compared to the previous trading day, with Jiangnan New Materials leading the gains [1] - The Shanghai Composite Index closed at 3870.28, up by 1.19%, while the Shenzhen Component Index closed at 13224.51, up by 2.4% [1] - A table detailing the individual stock performance within the metal new materials sector was provided [1] Group 2 - In terms of capital flow, the metal new materials sector experienced a net outflow of 233 million yuan from main funds, a net outflow of 101 million yuan from speculative funds, and a net inflow of 334 million yuan from retail investors [2] - A table showing the capital flow for individual stocks in the metal new materials sector was included [2]