1.Ultrasonic welder 2.Used for plastic welding 3.High working rate 4.High quality parts 5.Used for ABS, PP, PE, PVC, ... , PP, PE, PVC, acrylic material1. Plastic welding machine is used for plastic welding or weld plastic into metal like screws.2. Protection curcuit ... on electromagnetic induction, can get through plastic to heat the implanted reacting parts for an instant without direct contact. This ...