The parameters of the mining (Coal seams, Wide Slope the floor PIT, criteria and minimum required Coal ketebalam was dug, the thickness of the coal that is obsolescent, the thickness of the layer should be inside the Partings are discarded, the thickness of the top and the bottom that may not be tergali.) • Mining Squence• A System For Drainage• Flags or signs of Surveyors as a boundary survey.
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