... .ultrasonic welding machine can be use to plastic welding,riveting suture,is the ideal device to welding,the design is advanced, ... and stable quality.Adopt dip switch,can be adjusted to 100 second,easy adjustment,low breakdown rate.Othermeasuring concentric ... is strong..Output superpower,welding surface super-large,molten according to effect can achieve strong beautiful speed efficiency preferred. 15k ...