An haifi fiber fiber a cikin 1930s.Wani nau'i ne na kayan da ba na ƙarfe ba wanda pyrophyllite, yashi ma'adini, farar ƙasa, dolomite, calcite, brucite, boric acid, soda ash da sauran kayan albarkatun sinadarai ke samarwa.Yana da nauyi mai sauƙi, ƙarfin ƙarfi, tsayin daka da ƙarancin zafin jiki, corrosio ...
Kara karantawa