Girazi fiber yakazvarwa muma1930s.Imhando ye inorganic isiri-metallic zvinhu inogadzirwa ne pyrophyllite, jecha requartz, limestone, dolomite, calcite, brucite, boric acid, soda ash uye mamwe makemikari emagetsi.Iine huremu huremu, simba rakakura, yakakwirira uye yakaderera tembiricha kuramba, corrosio ...
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