中海达：公司产品技术主要应用于测绘测量等领域

Group 1 - The company, Zhonghaidah (300177), focuses on the research, development, manufacturing, and sales of high-precision navigation and positioning technology-related hardware and software products and services [1] - The company's products are primarily applied in various fields including surveying and mapping, disaster monitoring, hydrology and water conservancy, emergency rescue, intelligent driving, and mechanical control [1]