... nonwoven shopping bags Output power : 2000WPower Input : 200V/50HzOutput frequency : 20KHzWorking temperature :0 --38CWorking speed : 0-20m/minEquipped ... ribbon,Christmas ornament, flowersformed animals.Features:1. Use ultrasonic energy to cut, weld, seal seam, hole, emboss, stitch, slit ... work continuously for mass production.can work curves; easy to change Rollers.5.Can print color on the laces with ...