91日韩亚洲永久免,国产一级无码在线,哦哦三级影院,伦理成人一区第五页

Application：
◆Telecommunications network
◆ Construction of communication base stations in villages, remote areas in cities and towns 
◆Residential areas and buildings FTTH
◆ Security monitoring project
◆ Others occasion which information together with electric power at the same time
Description：
The fibers,250μm,are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. The cable core is FRP or metallic strength member( some structures need add PE as bedding layer in the strength member). Electric wires and tubes (and fillers) are stranded around the strength member into a compact and circular cable core. The cable core is filled with the filling compound to protect it from water ingress. After two sides PSP are longitudinally applied over the inner sheath ,the cable is completed with PE or LSZH outer sheath.