Electronic connecting line is one of the components that connect electrical lines. It mainly plays the role of electrical connection and signal transmission between devices and components, components and cabinets, and systems and subsystems, and maintains no signal distortion and signal transmission between systems. The change of energy loss, its quality is related to the reliability of the overall operation of the system equipment, it is an important supporting product of the host manufacturer, and its technical characteristics are greatly affected by the technological development of the downstream industry. A complete connector product generally goes through three processes of design, manufacture and packaging/assembly.