According to the metal activity table, the active properties of metal copper on the back, so corrosion resistance and oxidation resistance is better than other metals, copper chemical stability, cold resistance, heat resistance, pressure resistance, corrosion resistance and fire resistance (copper melting point up to 1083 degrees Celsius) and other characteristics in one, so copper connector durable, can be used in different environments for long term. Copper’s conductivity and thermal conductivity are second only to silver, and it is widely used in making conductors. Therefore, Amass LC series connectors adopt silver plating layer on the basis of copper conductors, aiming to improve the current-carrying performance of high-current connectors and ensure the efficient operation of intelligent devices.