China News Service, Jiujiang, February 4th: "Pathfinder" on the Beijing-Kowloon Railway. Flaw detection engineer Chai Guoyang and his team members carried out intensive flaw detection operations on the switches and lines of Jiujiang South Station.
Transverse cracks caused by fish scale injuries were found on the 4# branch straight rail, with a depth of 2 mm, a height of 10 mm, and a width of 12 mm, reaching the serious injury standard. "Serious injuries like this must be detected carefully and repeatedly, otherwise it is easy to miss," he said.