技术能力显著提升 国际化步伐不断加快 国产盾构机高效开挖样样在行（向新向优的中国产业）

Core Viewpoint - China's self-developed "Qiming" vertical shaft tunneling machine, the largest in the world, has officially commenced operations, marking a significant advancement in tunneling technology and efficiency [1]. Group 1: Technological Advancements - The "Qiming" machine can excavate vertically, overcoming the limitations of traditional shield machines that only operate horizontally, thus improving construction efficiency and reducing risks [1]. - The "Jiaomei" tunneling machine has demonstrated exceptional capabilities, achieving a monthly excavation of 606 meters and increasing efficiency by 40% while reducing costs by 60% in challenging geological conditions [3]. - The "Bianjing No. 1" machine, capable of variable diameter excavation from 8.83 meters to 12.45 meters, represents a breakthrough in tunneling technology, allowing for seamless adjustments during operations [5][6]. Group 2: Market Expansion and International Recognition - China now produces 70% of the world's shield machines, with a domestic core component localization rate exceeding 90%, indicating a strong position in the global market [1]. - The export of the "Patigalang" and "Balanglu" machines to Australia showcases China's capability in manufacturing ultra-large diameter shield machines, marking a shift from reliance on imports to leading in the global market [8]. - Chinese companies have secured top positions in global shield machine sales, successfully entering markets across six continents and over 30 countries [9].