Ultrasonic Spot Metal Welder 1)Frequency:35KHz 2)Power:1500W 3)Voltage:220V CE ... line or automated equipmentl Very low power consumption (about a resistance welding 1 / 5)l High reliability. It is on time ... , nickel, gold high-conductivity metal weldingSolid solder joint, solder joint resistance is small, no traces of oxidation, fast, beautiful, safe, easy ...