工程咨询服务板块9月3日跌1.92%，中国瑞林领跌，主力资金净流出3.7亿元

Core Insights - The engineering consulting services sector experienced a decline of 1.92% on September 3, with China Railway leading the drop [1] - The Shanghai Composite Index closed at 3813.56, down 1.16%, while the Shenzhen Component Index closed at 12472.0, down 0.65% [1] Sector Performance - The engineering consulting services sector saw a net outflow of 370 million yuan from major funds, while retail investors contributed a net inflow of 256 million yuan [2][3] - Key stocks in the sector included: - Jian Design (300668) with a closing price of 20.60, up 17.71% and a trading volume of 28,400 [1] - China Railway (603257) closed at 61.71, down 7.24% with a trading volume of 119,200 [2] Individual Stock Analysis - Major inflows and outflows for specific stocks included: - Deep City Transportation (301091) had a net inflow of 14.63 million yuan from major funds, but a net outflow of 4.34 million yuan from retail investors [3] - China Railway (600629) saw a net inflow of 8.21 million yuan from major funds, while retail investors had a net outflow of 0.35 million yuan [3]