非金属材料板块12月10日跌0.71%，力量钻石领跌，主力资金净流出1.28亿元

Group 1 - The non-metal materials sector experienced a decline of 0.71% compared to the previous trading day, with Strength Diamond leading the drop [1] - On the same day, 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 non-metal materials sector saw a net outflow of 128 million yuan from main funds, while retail investors contributed a net inflow of 138 million yuan [2] - Speculative funds experienced a net outflow of 9.5958 million yuan in the non-metal materials sector [2]