... welder high efficiency The features of the machine:(ultrasonic plastic seam welder high efficiency)1,Big power,using ... method.Tcchnique specification:(ultrasonic plastic seam welder high efficiency)Modle NoLK1522(Standard Machines)LK1521(Standard Machines ... plastic seam welder high efficiency) Widely used in the automotive industry, electronic industry, medical industry, household appliances, woven ...