油服工程板块9月22日跌0.65%，科力股份领跌，主力资金净流出1.08亿元

Group 1 - The oil service engineering sector experienced a decline of 0.65% compared to the previous trading day, with Keli Co., Ltd. leading the drop [1] - On the same day, the Shanghai Composite Index closed at 3828.58, up by 0.22%, while the Shenzhen Component Index closed at 13157.97, up by 0.67% [1] Group 2 - In terms of capital flow, the oil service engineering sector saw a net outflow of 108 million yuan from main funds, while retail investors contributed a net inflow of 90.05 million yuan [2] - Speculative funds recorded a net inflow of 18.18 million yuan into the oil service engineering sector [2]