① the first one in our country! In the shield method, the low-speed maglev tunnel runs through all lines, and the agency estimates that the domestic shield machine market will reach 40 billion yuan in 2024. The market share of this medium-prefix state-owned enterprise ranks first. ② overseas Mapping: the world's largest manufacturer in this field is considering selling products in RMB. Alphabet will release an update to the artificial intelligence application at Google's iUnix O conference. What are the A-share related companies? The price increase of the ③ super brand is the highest in the past 18 years, and analysts are optimistic that the industry is at the beginning of a new growth cycle, and the company's craftsmanship has been included in the fourth batch of national intangible cultural heritage list.