Coal in Visakhapatnam, Andhra Pradesh | Get Latest Price ...
The common coals used in Indian industry are bituminous and sub-bituminous coal. The gradation of Indian coal based on its calorific value is as follows: GRADE A (GCV EXCEEDS 6200 with moisture 19% approx) GRADE B (GCV is 5600 – 6200 with moisture 21% approx) GRADE C (GCV is 4940 – 5600 with moisture 28% approx)
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