Tin-plated copper is 99.99% of red copper as a core wire, made of hot tin plating based alloy, the product has the bright appearance, uniform color, strong adhesion of tin layer, high oxidation resistance and other characteristics, conform to "SJ2422-83 Electronics components with tinned copper "standard; now widely used in wire and cable, electronic pins (leads) and PCB board electronic components connected across the line (jumpers).