Embodiments of the present invention relate to glass compositions, glass fibers formed from such compositions, and related products. In one embodiment, the glass composition comprises 58 to 62% by weight of SiO 2 , 14 to 17% by weight of Al 2 O 3 , 14 to 17.5% by weight of CaO, and 6 to 9% by weight of MgO, wherein The amount of Na 2 O is not more than 0.09% by weight.
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机译：本发明的实施方案涉及由这种组合物形成的玻璃组合物，玻璃纤维和相关产品。在一个实施方案中，玻璃组合物包含58至62％（重量）的SiO <亚℃，14-17％（重量），14-17％（重量），14-17重量％Al 2 O 3 ，14至17.5重量％的CaO，6至9重量％的MgO，其中Na 2 O的量不大于0.09重量％。
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