I-kaolin egayiwe yavela e-United States, ekuqaleni ukuze isuse inani le-organic carbon ku-kaolin ethambile futhi ithuthukise ubumhlophe bomkhiqizo.Kamuva, abantu basebenzisa le ndlela ukucubungula i-kaolin yesilinganiso samalahle, futhi bakhiqiza imikhiqizo esebenza kahle, esezingeni eliphezulu, futhi enenani eliphakeme kakhulu kune-ordin...
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