地面兵装板块8月4日涨4.89%，北方长龙领涨，主力资金净流入8.88亿元

Market Overview - The ground equipment sector increased by 4.89% on August 4, with North China Long Dragon leading the gains [1] - The Shanghai Composite Index closed at 3583.31, up 0.66%, while the Shenzhen Component Index closed at 11041.56, up 0.46% [1] Stock Performance - North China Long Dragon (301357) closed at 114.78, up 20.00% with a trading volume of 139,100 shares and a turnover of 1.481 billion [1] - Great Wall Military Industry (601606) closed at 38.83, up 10.00% with a trading volume of 918,400 shares and a turnover of 3.496 billion [1] - Inner Mongolia First Machinery (600967) closed at 21.60, up 7.46% with a trading volume of 1,401,700 shares and a turnover of 2.972 billion [1] - Other notable performers include Tianzuo Equipment (300922) up 5.76%, Guoke Shigong (688543) up 5.52%, and Jieqiang Equipment (300875) up 4.57% [1] Capital Flow - The ground equipment sector saw a net inflow of 888 million from institutional investors, while retail investors experienced a net outflow of 313 million [2] - The main capital flow data indicates that Great Wall Military Industry had a net inflow of 54.7 million, while Inner Mongolia First Machinery had a net inflow of 25.9 million [3] - North China Long Dragon experienced a net inflow of 17.9 million from institutional investors, but retail investors had a net outflow of 44.9 million [3]