激日韩高潮久久精品_小美女操老头和动物操逼_无码男生深夜福利网站_波多野结衣一区二区三_好看丁香婷色五月激情综合深爱的电影_成年视频免费在线观看网站_国产刺激真实乱对白_国产老少配grαnnychinese_丁香婷婷影院综合尤物_色老头吮她的花蒂h

The precise control of the excess length of the optical fiber ensures that the optical cable has good tensile performance and temperature characteristics. The loose tube material has good water resistance and high strength. The tube is filled with special oil paste. The key protection of the optical fiber is good pressure resistance and softness. PE sheath has good UV radiation resistance and environmental stress cracking resistance.

Fiber optic cables with different structures can be made of different materials to meet the needs of different application places. Since the early 1980s, the application places of fiber optic cables have experienced the development process from core network to man and access network, In the future, it will be extended to the family desktop or developed from indoor to outdoor. At the same time, CommScope 6-core optical fiber has made great progress in material selection, structure optimization and manufacturing process, application place and laying mode.

Phosphating steel wire for optical cable is a special application of optical fiber cable in the field of communication, that is, the communication cable used in the coal industry, which is used in coal mine, gold mine, iron mine and other mine situations. MGTSV not only inherits the whole performance of optical fiber cable, but also adds a lot of special performance because of the special requirements of coal industry.