Tiejian Heavy Industry successfully lowered the 15m level cutting tool into the well, initially installed Tianyou cutting tools, and successfully excavated Tianyou Xingsheng

Author：PV：286 Time：2023-09-01

Next： 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 Prev： The Xingding shield tunnel of China Railway 12th Bureau Group successfully completed the 1750 meter shield tunnel in 142 days, with the assistance of Tianyou cutting tools and tail brushes throughout the entire process

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