Өмнөд Африкт зарагдах хөдөлгөөнт шохойн чулууны цохилтот бутлуур
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 value Properties of fine particle size platy shape inertness non toxicity and high brightness and whiteness ...
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