According to reports: Baihetan Hydropower Station, a million-kilowatt giant hydroelectric generating unit is the "Mount Everest" of the world's hydropower industry. The Baihetan unit is the world's first million-kilowatt hydroelectric generating unit and is a super giant mixed-flow unit. The hydroelectric generator set is the pinnacle of hydropower in the world. Among them, a single Baihetan million unit is more than 50 meters high and weighs more than 8,000 tons, which is equivalent to the weight of the Eiffel Tower in France. As the "heart" of the hydropower unit, the runner is the most difficult component to develop and manufacture in the entire unit. It is also the core component of the entire unit. The entire runner is composed of 15 blades, each weighing 11 tons.