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(nèi)容
Mining optical cable (16 cores)
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
柳州市| 东平县| 乌拉特中旗| 麦盖提县| 龙陵县| 屯门区| 安义县| 罗平县| 库伦旗| 扬州市| 连城县| 东至县| 昔阳县| 青川县| 肇东市| 台南市| 星座| 来宾市| 东宁县| 台山市| 石棉县| 英超| 山阳县| 北川| 澄城县| 武清区| 曲周县| 田阳县| 广东省| 托里县| 朝阳县| 万年县| 石柱| 文成县| 方城县| 旬邑县| 德令哈市| 东平县| 建瓯市| 汶上县| 余姚市|