Optimising Crusher Productivity at Nongtrai Limestone Quarry Lafarge Umiam Pvt. Ltd India Site Profile Nongtarai Limestone Mine (NLM) is a captive mine of Lafarge Umiam Mining Private Limted (LUMPL) with a production of 2 Mtpa. It is situated near Phlangkaruh, Nongtrai Village, East Khasi Hills District in the State of Meghalaya, India. The strata at the mine is limestone with a compressive strength of 160 MPa-180 MPa. The mine

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