Middlings Posted by admin Date March 30, 2019 Particles composed of coal and shale and having therefore too high an ash content to be classed as coal and too low as ash content to be classed as shale. Share: admin Jim Baker Previous post Micro March 30, 2019 Next post Middlings True March 30, 2019 You may also like The Point Of It All October 13, 2024
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