China Railway Construction Bridge Bureau Guangzhou Line 18-22, Division 6, Double Line Departure in Sha Shi District, with Tianyou providing all the cutting tools and tail brushes, achieved a good result of 2347 meters without changing the cutting tools a

Author：PV：352 Time：2023-09-01

China Railway Construction Bridge Bureau Guangzhou Line 18-22, Division 6, Double Line Departure in Sha Shi District, with Tianyou providing all the cutting tools and tail brushes, achieved a good result of 2347 meters without changing the cutting tools and 4000 meters without leakage of the tail brush

Next： The right line section of Changchun Metro Line 2, Area 4, constructed by China Railway Construction Corporation, was smoothly connected without tool replacement throughout the entire process. All tools were provided by Shandong Tianyou Tunnel Engineering Prev： Shandong Tianyou Tunnel Engineering Equipment Co., Ltd. provides the first 9-meter diameter TBM+shield tunneling machine in China with complete sets (blue and yellow cutting tools) to land on Hunan TV