Mine Ventilation | Ventilation MCQ | Mining Videos | Important for Mining Sirdar exam |

[@mdhussainaliansari1451]

Vary helpful video sir

[@jayprakashyadav6420]

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[@jayprakashyadav6420]

Superb

[@babaidas1641]

Metal mines in open cast me kuch hai kya

[@studymining5209]

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[@mdhussainaliansari1451]

mining sardar cole mines ka notes hai aap ke pass?

[@RahulKumar-tj2ne]

Sir first year mining important questions answered mine technology important questions answered exam hone wala hai