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LUBRICANTS BY R N BEHERA Asst. Engr.( EXCV.) , GVTC, JAGANNATH AREA, M.C.L.

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MINE TRAINER BY M.K. PANDA Mgr. Min. GVTC,JA

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HEMM PPT FOR OPEN CAST MINE BY S K MOHANTY Asst. Engr. (Excv.) GVTC.JAGANNATH AREA.

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