өмнөд африкт каолин бутлуурын үйлдвэрлэгч ашигласан
өмнөд африкт зарагдах каолин хацарт бутлуур kaolin minneral . Kaolin Kaolin (hydrated aluminium silicate, Al 2 Si 2 O 5 (OH) 4) is the most important of the industrial clays in terms of both consumption and of fine particle size, platy shape, inertness, nontoxicity, and high brightness and whiteness make it a most versatile mineral, with ...
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