... : 1, Power: 500W 2, Frequency: 35Khz 3, Weight: 10kg handheld ultrasonic plastic welding machineDongguan City South Nekon Machinery Co., LTD founded in ... of technology of ultrasonic machinery (Ultrasonic rhinestone fixing machine, face mask making machine, ultrasonic ribbon cutting machine, ultrasonic lace sewing machine, ultrasonic plastic welding machines, high ...