... machine Industrial Sewing Machines ultrasonic cutting lace machine Ultrasonic Lace Sewing Machine Technical Parameter:ModelJRL-015Frequency20KHzWorking Speed0 ... needles,good welding strength;Hole making: Cut out the various patterns of holes,and treatment of side melting;Slitting ... ,PVC,PE,PP,PS,etc.Application:Apply to lace clothing,ribbon,decoration products,handkerchief,tablecloth,curtain,bedspreed, ...