देखिए कैसे रेल और मेट्रो सुरंगों का निर्माण होता है ✅ How Railway And Metro Tunnels Made With TBM 

देखिए कैसे रेल और मेट्रो सुरंगों का निर्माण होता है ✅ How Railway And Metro Tunnels Made With TBM
Video Credit :
Fan Railer
m.ru-vid.comfea...
Marti Group
www.marti.com/en/
Music Credit :
Bensound
www.bensound.com/
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