Chinese brands help build nation's strength
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China's domestically developed supersized shield tunneling machine rolled off the production line on April 22 in Zhengzhou, Central China's Henan province, according to China Railway Hi-tech Industry Corp Ltd, a subsidiary of State-owned China Railway Group Ltd.
Named "Zhengxian", the shield tunneling machine has a diameter of 15.09 meters and weighs 4,400 tons, with several exclusive patents, the company said.
With abundant technical strength, the company continues to focus on the tunnel-boring sector, contributing a Chinese project to global tunnel construction, said Zhuo Puzhou, general manager of CRHIC. Products are exported to more than 30 countries and regions globally, with production and sales being No 1 for the fifth straight year.
