Profile: Shantou Institute of Ultrasonic Instruments Co., Ltd.(SIUI) manufactures ultrasonic flaw detectors. Our products include multi-channel & single-channel digital ultrasonic flaw detectors, analog ultrasonic flaw detectors, ultrasonic thickness gauges and a range of probe accessories. Our flaw detectors are used for flaw detection and test fields such as machinery, metallurgy, railway, shipbuilding, aircraft & building. Our CTS-4020E is suitable for various detection demands of forged pieces, welding lines and airplane parts.