What materials can be welded using ultrasonic welding?

Plastic materials: Ultrasonic welding is particularly common in the connection of plastic materials, including but not limited to ABS, Acetal, PPS, PS, HIPS, PC+ABS, PBT, PPE, PPO, PSF, PE, PC, PA, POM, SAN, PP, PVC, PMMA, etc. Under ultrasonic vibration, the molecular structure of these plastic m