боксит мэдээлэл Гэр | боксит мэдээлэл. Нунтаглах боксит. Introduction to Dolomite Bauxite is also known as alumina bauxite, the main component is alumina oxide which is hydrated alumina containing impurities, is an earthy mineral; white or gray, shows in brownish yellow or pink color because of iron ...
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