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 (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
务川| 特克斯县| 沾化县| 桦川县| 安宁市| 渝中区| 贵港市| 阿拉善左旗| 宁都县| 揭西县| 饶平县| 惠来县| 鸡泽县| 朔州市| 呼图壁县| 凉山| 东辽县| 阿克陶县| 枝江市| 新巴尔虎右旗| 洛阳市| 涞水县| 汤阴县| 麻阳| 呈贡县| 桃江县| 饶阳县| 搜索| 库尔勒市| 四平市| 犍为县| 遂川县| 西畴县| 阳江市| 麦盖提县| 鄄城县| 黄浦区| 兖州市| 临朐县| 喜德县| 济阳县|