SONOTEC GmbH Germany air-coupled ultrasound, flaw detector, non-destructive testing, piezo-composite, thickness measurement, ultrasonic probes, and ultrasonic testing
KARL DEUTSCH Prüf- und Messgerätebau GmbH + Co KG Germany crack detection, flaw detector, magnetic particle, ndt systems, thickness gauges, ultrasonic testing, and ultrasound probes
Shantou Institute of Ultrasonic Instruments Co., Ltd. (SIUI) China flaw detector, ndt, phased array, thickness gauge, tofd, and ultrasonic testing
