First Best Grade RB 1 Coal For Sale

DESCRIPTION....

Coal began to form a few million years ago, carbon forests died off, fell into the soil, eventually turned into peat, then into brown coal, and then into stone. Over time, anthracites were formed from coal. Thus, we can say that there are three types of coal: the youngest is brown coal, then there is coal, the oldest is anthracite.

Strictly speaking, the classification of coal is ambiguous, it can be carried out on many parameters: the geography of production, chemical composition, but from the "household" point of view, buying coal, it is enough to understand its labeling.

Main groups of coals

The following letter markings (names) of coal are generally accepted: first, the brand of coal is indicated, then the class of size.

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