... YP-D45 28Khz Ultrasonic Hand-held Plastic Welding Machine Used in spot welding,pressure welding,riveting,marking ... , handheld ultrasonic welding machines, hand-held welding machine, portable welding machine, ultrasonic spot welding, riveting machines, ultrasonic point ... front corner lamp, rear tail light, instrument, reflectors, automotive manual welding jacket, the car door welded baffle welding, ...