Cov iav fiber ntau yog cov khoom siv fiber ntau micron ua los ntawm iav los ntawm rub lossis centrifugal quab yuam tom qab kub kub yaj, thiab nws cov khoom tseem ceeb yog silica, calcium oxide, alumina, magnesium oxide, boron oxide, sodium oxide, thiab lwm yam. Muaj yim hom iav fiber ntau, uas yog, ...
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