... 15KHZ, 20KHZ, 28KHZ, 35KHZ, 40KHZ Ultrasound technology in industrial applications are the followings: welding, heeling-in, forming, ... transducer, ultrasonic mould those three important parts.Dongguan South Nekon Machinery co.,ltd. as a large-scale ultrasonic equipment manufacturer ... device, as the important constituent part of ultrasonic industrial equipment, plays an important role in the production ...