自产拍在线观看无码成人_了解最新免费逼片_国产精品亚洲片夜色在线破除_神马家庭影院_又粗又大又猛免费视频_三级全黄的全黄三级三级播放_911日韩精品影视_伊人国产亚洲精品视频_手机AV在线免费观看_少女的悔悟潘甜甜果冻传媒资源

About us Contact us Sitemap Welcome to visit the website of Shandong Tianyou Tunnel Engineering Equipment Co., Ltd.!
Shandong Tianyou TunnelEngineering Equipment Co., Ltd
Hotline:+86-0635-8368869
Location: Home >Cases

Cases

Hotline

+86-0635-8368869

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

Author:PV:196 Time:2023-09-01

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" commercial complex. It has achieved monthly excavation of 368 meters and daily excavation of 24 meters, with all cutting tools provided by Tianyou Tunnel! Wishing you a speedy connection