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
  • Contact us
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
仙桃市| 永安市| 磴口县| 枣阳市| 宁河县| 汪清县| 肇州县| 巍山| 成都市| 辛集市| 天峨县| 南靖县| 南充市| 娱乐| 苍南县| 郴州市| 南溪县| 宁波市| 年辖:市辖区| 惠州市| 当阳市| 永嘉县| 张家川| 偏关县| 泰和县| 蒙城县| 嘉峪关市| 翁牛特旗| 民勤县| 肥东县| 林甸县| 定边县| 徐闻县| 北安市| 萨迦县| 衡山县| 耒阳市| 独山县| 广平县| 巴楚县| 茂名市|