拓山重工：设备广泛用于高速铁路、桥梁建设、水利水电等大型基建项目

Group 1 - The company,拓山重工, primarily focuses on products used in the walking mechanisms of tracked construction machinery such as excavators and bulldozers [1] - These machinery are widely utilized in large infrastructure projects including high-speed railways, bridge construction, and water conservancy projects [1] - The company plans to continuously monitor market demand and enhance technological research and development to improve competitiveness in the high-end construction machinery sector [1]