Basalt Fiber (BF mwachidule) ndi mtundu watsopano wazinthu zosagwirizana ndi chilengedwe zomwe zimagwira ntchito kwambiri.Mtundu wake nthawi zambiri umakhala wofiirira, ndipo ena amafanana ndi golide.Zimapangidwa ndi ma oxides monga SiO2, Al2O3, CaO, FeO, ndi zonyansa zochepa.Chigawo chilichonse mu ulusi chimakhala ndi zake ...
Werengani zambiri