Product Certification by Ministry of Information Industry RoHS,ISO9001:2008 User:China Mobile,ZTE,Huawei,Iran,India,Cnanda Construction Characteristics: High physically foaming insulation, helix copper inner conductor, welded and corrugated copper outer conductor.Advantages: Low attenuation, low standing wave, high shielding, damp-proof gas free maintenance, flexible, high anti tensile strength. ...