ultrasonic soldering machine is applied to weld or solder respirator, medical mask, bag's handle widely, etc Ultrasonic spot welding machine Function:Non woven bag handle disposable mask and embossing and bondingSuitable material :composite material, non-woven fabric cloth, such as chemical fibrous cloth, nylon cloth, knitting cloth, non woven cloth, gush glue cotton, PP,PE,PVC,ABS, and so on. ...