日本古河电气工业公司最近与新日本制铁公司一起,共同开发了细直径、高强度钢槽型光纤光缆。在这种光缆的中心,放置一根钢槽线,其上设有八条螺旋状沟槽,沟槽中插入光纤形成光缆。这种钢制高强度八沟型异型线的稳定制造,据说是新日本制铁公司技术上的一个很大贡献。 Japan’s Furukawa Electric Co., Ltd. recently with the Nippon Steel Corporation to jointly develop a small diameter, high strength steel slot optical fiber cable. In the center of such an optical cable, a steel groove line is placed, on which eight spiral grooves are provided, into which optical fibers are inserted to form an optical fiber cable. The stable manufacture of such steel high-strength eight groove type profiled wire is said to be a great contribution to the technology of Nippon Steel Corporation.