| 摘要 |
There is provided a glass fiber comprising the SiO2 content is 57.0 to 63.0% by weight; the Al2O3 content is 19.0 to 23.0% by weight; the MgO content is 10.0 to 15.0% by weight; the CaO content is 4.0 to 11.0% by weight; and the total content of SiO2, Al2O3, MgO and CaO is 99.5% by weight or higher based on the total weight. |
