... poor welding .Some application examples of cabinet type ultrasonic welderAuto parts: bumpers, air filters, car audios, foot pads, door panels, clutch forksElectric ... and clothing: valve bags, paper cups, dairy food packing cases, bag belts, zippersFishing gear: imitated plastic hard fishing baits, plastic fishing ... spare tire box, filter, bumper and so on. Applications accessories air bag auto audio