油服工程板块11月20日跌1.93%,科力股份领跌,主力资金净流出3.38亿元

Group 1 - The oil service engineering sector experienced a decline of 1.93% on November 20, with Keli Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 3931.05, down 0.4%, while the Shenzhen Component Index closed at 12980.82, down 0.76% [1] - A table detailing the individual stock performance within the oil service engineering sector was provided [1] Group 2 - On the same day, the oil service engineering sector saw a net outflow of 338 million yuan from main funds, while retail investors contributed a net inflow of 300 million yuan [2] - The sector attracted a net inflow of 38.08 million yuan from speculative funds [2] - A table showing the fund flow for individual stocks in the oil service engineering sector was included [2]