Basalt Fiber (BF kwenguva pfupi) rudzi rutsva rwezvakatipoteredza zvine hushamwari zvakanyanya-kuita zvinhu.Ruvara rwacho kazhinji irworwu, uye mamwe akafanana negoridhe.Inoumbwa neokisidhi yakadai seSiO2, Al2O3, CaO, FeO, uye shoma shoma yetsvina.Chimwe nechimwe chikamu mufiber chine chayo chakati...
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