Since its inception in 1980, Chang Wei Ultrasonic Co., Ltd has enjoyed over 3 decades in the fields of ultrasonic welding technology and ultrasonic tooling & fixture. Chang Wei is organized according to three divisions which are OEM ultrasonic plastic welding mahcine division, ultrasonic tooling & fixture division and ultrasonic assembly service (OEM). Chang WEI is dedicated to providing the highest quality products and real world manufacturing solutions, backed by over 30 years comprehensive technical support and applications expertise. Chang Wei can successfully meet your challenge with our application experience, technical expertise and responsive service.