Despite his young age, 27-year-old Sun Jianjun is a seasoned welder with nine years of experience.
In April 2015, as a high school student, Sun moved from his hometown of North China’s Hebei province to Wuhan, the capital city of Central China’s Hubei province. At the age of 18, he decided to pursue further studies at a welding training institution linked to an iron smelting company.
https://www.chinadaily.com.cn/a/202401/24/WS65b03ad9a3105f21a507df16.html