Advantages (merits) of Longwall mining methods

[@pradeepdubey4420]

Sir you are working so hard

[@gunvantbele-miningclasses]

Ok

[@chillwithglory9205]

Verry verry thank you sir bhut madat mil rhi h aapki video dekh ke

[@gunvantbele-miningclasses]

ok

[@bhimaturi]

Nice explain sir🙏🙏

[@gunvantbele-miningclasses]

Ok

[@VishalKumar-bf3rf]

Thankyou sir. 🙏

[@gunvantbele-miningclasses]

ok