Feature: 1. The resistance to bending spring interface sheath, adopting physics bending design, through the measurement of swing, let the wire use more stable life for its corrosion-proof. 2. Spring is strong, springback deformation.Maintain prototype ,rebound strong and quickly, and not easy deformation and easy to rust, protection warp. 3. Efficient nickel plating interface, antioxidant ability. 4. The cable outer adopts environmental protection TPE materials, strong anti-winding. 5. High quality cable core, transmission faster and more stable.