Congratulations to Shandong Tianyou Tool and Shield Tail Brush for helping the smooth connection of the shield tunnel section on the left line of China Railway 19th Bureau

Author：PV：199 Time：2023-09-01

Next： The Hangzhou Tianmushan Tunnel (under construction by Tunnel Co., Ltd.) is 1700 meters long, with no replacement of any cutting tools throughout the entire process (all Tianyou cutting tools), and it has been smoothly pushed through to ensure the smooth c Prev： China Railway 14th Bureau Beijing East Sixth Ring Road Project. Since its inception, the domestically produced 16 meter diameter shield tunneling machine "Jinghua" has steadily excavated, successfully crossing multiple risk sources such as the "Happy Song

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