Group 1 - The Yarlung Tsangpo River hydropower project, with an investment of 1.2 trillion yuan, is a significant infrastructure project comparable to five Three Gorges projects in terms of investment scale and three in terms of installed capacity [1] - The project features a unique development model involving "cutting corners and straightening" along with tunnel water diversion, requiring the construction of 12 water diversion tunnels totaling nearly 200 kilometers, with an underground rate exceeding 80% [1] - The high-intensity and high-risk construction environment demands advanced engineering equipment, particularly in critical areas such as high-altitude operations, tunnel construction, and intelligent construction [1] Group 2 - Zhejiang Dingli, a company with extensive experience in high-altitude equipment, is gaining market attention due to its comprehensive solutions covering various operational scenarios, including tunnel drilling, equipment transportation, and glass curtain wall installation [1] - The company's electric arm high-altitude equipment successfully served the Yebatang hydropower station, showcasing its reliability and adaptability in extreme environments [1] - Zhejiang Dingli's self-developed electric tunnel drilling robot leads the industry in efficiency, safety, and intelligence, enhancing the installation of ventilation, lighting, and fire protection systems in long tunnels [2] Group 3 - The company has designed a rail-mounted high-altitude vehicle specifically for tunnel operations, characterized by high load capacity and speed, suitable for complex construction scenarios [2] - The introduction of a high-suction electric glass suction vehicle enhances stability and efficiency in the installation of modern hydropower station exteriors [2] - As major projects like the Yarlung Tsangpo River hydropower station progress, there is an increasing demand in various sub-sectors, including civil explosives, tunneling, and geotechnical equipment [2]