Өмнөд Африкт зарагдах шохойн чулуу ne бутлуур
2020 9 9 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