原文：The use of plastic fiber-optic cables will be able to lower the cost of material to 10 percent of those made of glass, while securing the same transmission speed as that of conventional products.
译文：使用塑胶光纤电缆能够将原料成本降低至玻璃的10％，又能保证与传统产品相同的传送速度。

原文：The use of plastic fiber-optic cables will be able to lower the cost of material to 10 percent of those made of glass, while securing the same transmission speed as that of conventional products.
译文：使用塑胶光纤电缆能够将原料成本降低至玻璃的10％，又能保证与传统产品相同的传送速度。

修改：使用塑胶光纤电缆能够将原料成本降低到用玻璃制作的光纤的10％，同时又保证了与传统产品相同的传物速度。