欧洲妇女成人淫片aaa视频,高清无吗,成人精品免费网站,国产精品久久免费视频,在线一二区,在线中文字幕播放,偿还的影视高清在线观看

search
Hot keywords
  • 聯(lián)系我們內容
Mining optical cable(12cores)
Mining optical cables are made by inserting single-mode or multi-mode optical fibers into loose tubes made of high modulus plastic, and filling the tubes with water-resistant compounds. The center of the cable core is a phosphated steel wire or a steel wire rope extruded with polyethylene. A loose sleeve (or filling rope and signal line) is twisted around the center to strengthen the core and form a compact and circular cable core. The gaps inside the cable core are filled with water-resistant filling material, steel polyethylene bonded inner sheath, and blue flame-retardant PVC sheath to form the cable. The mining optical cable has a flame-retardant sheath, which can have a full section water-resistant structure to ensure good water and moisture resistance. The loose sleeve is filled with special grease to provide critical protection for the optical fiber.
< >
Contact us
  • Qinhuangdao Wolf Cable Co., Ltd
  • No. 4 Zhuhai Road, Shanhaiguan Economic and Technological
  • 19933636285 18833522049
  • 18833522049@139.com
Scan to follow us
普兰县| 尤溪县| 稷山县| 铁岭市| 麟游县| 宣威市| 卓资县| 峨边| 阳信县| 临颍县| 平江县| 泊头市| 定远县| 铜陵市| 杨浦区| 广昌县| 丰县| 滨州市| 孝昌县| 徐汇区| 湟中县| 冕宁县| 漳浦县| 自贡市| 邵阳县| 兴海县| 武夷山市| 宣武区| 普兰县| 天镇县| 玉山县| 洞口县| 白城市| 榆中县| 宿松县| 浠水县| 论坛| 海宁市| 赫章县| 蕉岭县| 工布江达县|