北方长龙（301357）8月19日主力资金净流出2179.03万元

Group 1 - The stock price of Beifang Changlong (301357) closed at 173.0 yuan, up 1.24%, with a turnover rate of 51.55% and a trading volume of 122,700 hands, amounting to 2.148 billion yuan [1] - The latest financial report for Beifang Changlong shows total revenue of 20.569 million yuan, a year-on-year decrease of 16.86%, and a net profit attributable to shareholders of 5.0704 million yuan, down 244.16% [1] - The company has a current ratio of 9.131, a quick ratio of 8.630, and a debt-to-asset ratio of 7.41% [1] Group 2 - Beifang Changlong has made investments in 2 companies and participated in 29 bidding projects [2] - The company holds 25 trademark registrations and 145 patent applications, along with 13 administrative licenses [2]