... of safe weld method. Tcchnique specification:(ultrasonic plastic seam welder high efficiency)Modle NoLK1522(Standard Machines)LK1521(Standard Machines)Power2200W2600W28200W2200W2600W2800W3200W4200WFrequency 15KHZInput voltage ... , car doors, car dashboard,lights,mirrors, sun visor, interior parts, filters, reflective material, reflective spike,bumper, cable,motorcycle plastic filter, radiator ...