bn:01299326n
Noun Concept
Categories: Coal
EN
sub-bituminous coal  soft Coal  sub-bituminous  subbituminous  subbituminous coal
EN
Sub-bituminous coal is a lower grade of coal that contains 35–45% carbon. Wikipedia
Definitions
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Sources
EN
Sub-bituminous coal is a lower grade of coal that contains 35–45% carbon. Wikipedia
IS A