Stone dust barrier.
16:56
Connection of blast holes in OC mine. concept clear video. All doubts will be cleared.
5:14
what is the difference between stone dusting & Stone dust barrier
14:21
Introduction of SCBA(Self contained breathing apparatus) used in rescue work
21:31
Ascensional &Descensional ventilation.Homotropal &Antitropal ventilation
7:58
Triggered barrier - to prevent propagation of Gas explosion & Coal dust explosion
3:06:07
Nayak Full Hindi Movie (4K) | नायक (2001) | Anil Kapoor | Amrish Puri | Rani Mukerji | Paresh Rawal
26:50
Regulation 111- Bele sir trick to remember pillar size - This is innovative trick see the video
7:01