地面兵装板块8月29日涨6.29%，北方长龙领涨，主力资金净流入8.17亿元

Market Performance - The ground armament sector increased by 6.29% compared to the previous trading day, with North China Long Dragon leading the gains [1] - The Shanghai Composite Index closed at 3857.93, up 0.37%, while the Shenzhen Component Index closed at 12696.15, up 0.99% [1] Individual Stock Performance - North China Long Dragon (301357) closed at 182.16, up 20.00% with a trading volume of 129,400 shares and a transaction value of 2.148 billion [1] - Great Wall Military Industry (601606) closed at 69.17, up 10.00% with a trading volume of 1,123,700 shares and a transaction value of 7.462 billion [1] - Other notable performers include: - Jieqiang Equipment (300875) at 55.69, up 8.16% [1] - Inner Mongolia First Machinery (600967) at 25.72, up 7.39% [1] - Tianzuo Equipment (300922) at 27.23, up 6.37% [1] Capital Flow Analysis - The ground armament sector saw a net inflow of 817 million from institutional investors, while retail investors experienced a net outflow of 662 million [2] - The main capital flow for North China Long Dragon was a net inflow of 105 million, while retail investors had a net outflow of 95 million [3] - Great Wall Military Industry had a net inflow of 282 million from institutional investors, with a net outflow of 117 million from retail investors [3]