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'Fat coals' are those coals which have very high
Underfeed stokers work best for __________ coals high in volatile matter and with caking tendency
Highly caking coals
Caking index of a coal is a measure of its
Powdery materials can be guarded against caking tendency on storage by
The bituminous coal is no caking if its carbon content is
Caking coal is desirable for
The caking of crystals can be prevented by