High strength aramid yarn strength member ensures tension resistance. The standard cable OD is suitable to various connector parts. The sheath material has the following characteristics: Flame-resistant, high-temperature resistant, protecting environment, small outer diameter, light weight, excellent bending and flexible performance. Diameter of 0.6 tight buffer fiber(SM, MM, OM2, OM3, F.655 and etc. )+ Kevler+ stainless steel flexible tube+ stainless steel braiding( increase the cable's twist resistance, prevent destroy by outside force)+ outer jacket( different materials for option).