Guangzhou Doppler Electronic Technologies Co., Ltd is an ISO 9001 certified professional ultrasonic NDT equipment and transducer designer and manufacturer. Our main products are: 1. Phased array ultrasonic detectors; 2. Common ultrasonic flaw detectors; 3. Ultrasonic thickness gauges; 4. Phased array transducers; 5. Common industrial transducers; 6. Ultrasonic equipment accessories (connectors, wedges, and cables);