On June 21, Chinas first 15.03 meters large diameter shield tunneling machine "Zhenxing", designed and manufactured with independent technology and a number of domestic core components, was successfully rolled off the production line by Jia…
At 8:08 am local time on January 23, 2019, Chinas first overseas large diameter shield tunnel project under the kanapuri river in Bangladesh was successfully launched.At the test run ceremony of the shield machine held by the project, counsellor Li G…
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