In 3 minutes: How China builds a high-speed railway tunnel

A 3-minute video on how to build a high-speed rail tunnel has gone viral on Chinese social media. The how-to was released by the China Railway Construction Corporation Limited (CRCC), a state-owned enterprise that ranked 58th among the Fortune Global 500 in 2017. Subscribe to us on YouTube: Download our APP on Apple Store (iOS): Download our APP on Google Play (Android):