China W70 Tungsten Copper Plate, Copper Tungsten Plate, 50X100X200mm, 5W3 Tungsten Copper Alloy Electrode (elkonite), Find details about China Tungsten Copper Electrode, Electrode from W70 Tungsten Copper Plate, Copper Tungsten Plate, 50X100X200mm, 5W3 Tungsten Copper Alloy Electrode (elkonite)