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
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+86-0635-8368869Author:PV:315 Time:2023-09-01
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