Staffers from CREC4 Seventh Engineering work on the Jiaozhou Bay Second Tunnel in Qingdao, Shandong province. LI PINGHUI/FOR CHINA DAILY Chinese State builders participating in the building of the world's largest undersea tunnel in Qingdao, Shandong province, have boosted their construction abilities through technical innovations. He said the total length of the main line of CREC4's No 2 Bid is …
By HAN JINGYAN | China Daily | Updated: November 25, 2024 Staffers from CREC4 Seventh Engineering work on the Jiaozhou Bay Second Tunnel in Qingdao, Shandong province. LI PINGHUI/FOR CHINA DAILY Chinese State builders participating in the building of the world's largest undersea tunnel in Qingdao, Shandong province, have boosted their construction abilities through technical innovations. He said the total …
