... roller, abundant designs 3.fast speed 4.s Ultrasonic welding machine Basic components1. New type PC intellectual ultrasonic generator; 2 ... other roller designs available according to customer requirements;5. Four times faster than sewing machines, minimal operator training required. ... chemical plastic piece. such as nylon, polyster, ABC, PC, PVC, PE, PP, PS, etc.Application:Apply to lace clothing, ...