地面兵装板块11月12日跌3.07%，长城军工领跌，主力资金净流出6.78亿元

Market Overview - The ground equipment sector experienced a decline of 3.07% on November 12, with Changcheng Military Industry leading the drop [1] - The Shanghai Composite Index closed at 4000.14, down 0.07%, while the Shenzhen Component Index closed at 13240.62, down 0.36% [1] Stock Performance - Notable stock performances included: - Tianzuo Equipment (300922) closed at 23.80, up 0.72% with a trading volume of 23,900 lots and a turnover of 56.49 million yuan [1] - Changcheng Vehicle (601606) closed at 46.07, down 4.87% with a trading volume of 317,000 lots and a turnover of 1.473 billion yuan [2] - Beifang Changlong (301357) closed at 137.85, down 4.20% with a trading volume of 41,900 lots and a turnover of 576 million yuan [2] Capital Flow - The ground equipment sector saw a net outflow of 678 million yuan from institutional investors, while retail investors contributed a net inflow of 622 million yuan [2][3] - The capital flow for individual stocks showed significant variations, with North Navigation (600435) experiencing a net outflow of 37.78 million yuan from institutional investors [3] Individual Stock Analysis - North Navigation (600435) had a net outflow of 37.78 million yuan from institutional investors, while retail investors saw a net inflow of 48.87 million yuan [3] - ST Emergency (300527) faced a substantial net outflow of 12.29% from institutional investors, but retail investors contributed a net inflow of 7.29% [3] - The overall trend indicates a mixed sentiment among different investor types within the ground equipment sector [3]