what coal type widely used MC Machinery
what coal type widely used in America. Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite Bituminous usually has a high heating (Btu) value and is the most common type of coal used in electricity generation in the United Stat Bituminous coal appears shiny and smooth when you first see it, but look closer and you may see it has layers.