... Ultrasonic lace sewing machine can cut, sewing at the same time, without thread, trimming, making hole, weldiing, slitting Feature: (ultrasonic lace sewing machine, ... to smooth rough edges smooth, without Burr, meet the quality requirements. 2. Making hole: cut the various flower-shaped ... and many other materials.9. We produce this machine with different working width: 50mm, 75mm,100mm, 125mm, 150mm ...