... ,ABS,PU,CA,AS,PMMA,welding Ultrasonic welding for fabric sealingThe features of the machine:(ultrasonic welding for textile)1,Big power,using four ... not to make whole material of welded part vibrate through ultrasonic, but only to make appropriate vibration surface vibrate and generate ... hard plastic parts, the weld effect is much better.12, Ultrasonic weld will not give rise to any toxic substance as ...