... lace sewing machine Available in a straight line,cuve,edge, Welding,cutting,lace embossing,bronzing,binding,etc, ultrasonic lace sewing machine 1 ... steel material is used to make the knurl wheel,the welding head is wearable ,long using life.3) The lace mould ... to work,and not need to pre-heat. 2. Function Welding,cutting,lace embossing,bronzing,binding,itemizing and etc. 3. Apply to ...