when any working approaches within 60 meter of old waterlogged working ..

[@SumanHela-gd6dd]

Good

[@MiningJoydev]

Thank you so much.

[@004deborjotysarkar4]

Very good understanding sirji❤

[@ashikghosal2424]

Great video

[@MiningJoydev]

Thank you so much.

[@MiningJoydev]

Thanks.

[@RupeshKumar-yd7xp]

Great video sir.... ❤❤❤

[@MiningJoydev]

Thank you

[@anjaanmukherjee9441]

খুব সুন্দর স্যার

[@MiningJoydev]

Thank you.