ultrasonic welding for fabric sealing 1.Japan piezoelectricity ceramic transducer 2.PP,PE, ... PVC,ABS,PU,CA,AS,PMMA,welding Ultrasonic welding for fabric sealingThe features of the machine:(ultrasonic welding for textile)1 ... welding nonrectangular columns,avoid fadeaway.3,automatic overloading protection device4,Import converter and steel booster,durable stability5,Frequency adjustable and automatically ...