Ifayibha yeglasi yenziwa ngeenkqubo ezinje ngokunyibilikisa iiminerali ezinobushushu obuphezulu, njengeebhola zeglasi, italc, isanti yequartz, ikalika, kunye nedolomite, emva koko ukuzoba, ukuluka, kunye nokunitha. Idayamitha yefiber enye isuka kwimicrome ezimbalwa...
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