| 摘要 |
A mineral-fiber composition that is biologically degradable characterized by the following constituents in percent by weight: SiO2 40 to 67, CaO 20 to 45, MgO 0 to 12, Na2O 0 to 10, B2O3 0 to 15, Na2O + B2O3 0 to 25, P2O5 0 to 5, Al2O3 0 to 3, TiO2, Fe2O3, BaO, MnO, K2O 0 to 5.
|
