Most Dangerous Drilling | Amazing tunnel drilling inside mountains

Tunnels function as connections or roads used underground. Modern tunnel drilling uses special tools or TBM drilling machines. Carrying out tunnel drilling inside a mountain is a challenging task. Drilling must take into account the condition of the soil you want to dig. 1. the process of drilling a tunnel in a mountain ________________ Marti Gruppe web: instagram: linkedin: youtube: @MartiGroup tel: 41 31 388 75 75 email: info@ ---------------------------- For copyright matters please contact us at: sanikhsan@ Disclaimer: infoKU is not affiliated with the businesses whose products are shown in this review. Any trademarks depicted are the property of their respective owners. --------------------------- #invention #machine #onthesport #making #technology #extraordinary #sophisticate