装修建材板块12月10日涨0.22%，北新建材领涨，主力资金净流出1.28亿元

Group 1 - The core viewpoint of the news is that the renovation and building materials sector experienced a slight increase of 0.22% on December 10, with Beixin Building Materials leading the gains [1] - The Shanghai Composite Index closed at 3900.5, down 0.23%, while the Shenzhen Component Index closed at 13316.42, up 0.29% [1] Group 2 - In terms of capital flow, the renovation and building materials sector saw a net outflow of 128 million yuan from main funds, while retail investors contributed a net inflow of 111 million yuan [2] - Speculative funds recorded a net inflow of 16.61 million yuan into the sector [2]