Fully mechanized: watch how a 32-meter-long box girder is installed on a high-speed railway bridge under construction in China's Chongqing. #西瓜视频#Rail #Smart #Engineering #highspeedrail
Source: Xinhua
Editor: huaxia
2025-07-07 22:17:31
Fully mechanized: watch how a 32-meter-long box girder is installed on a high-speed railway bridge under construction in China's Chongqing. #西瓜视频#Rail #Smart #Engineering #highspeedrail