Ultrasonic lace sewing machine Used in welding,cutting,lace making,sewing cloth,bags,packing products,non-woven material,etc. HY-2020 Ultrasonic Lace Sewing MachineAvailable ... knitted products, sportswears,traveling bags, bed sets, clothings, masks, lace products,Christmas ornaments and other products.Technic items:Size:550mm ... max speed:0.22m/minThe welding width:100mm Ultrasonic Lace Sewing Machine