Guangzhou SonostarTechnologies Co., Limited is a company specialized in NDT products R&D, production and sales. We produceThickness Gauges, Ultrasonic Test Block, ultrasonic transducer, X-ray FlawDetector. Committed to provide users with quality excellent, cost-effectiveproducts. Welcome tocontact us and cooperation with us, we believe our service and products willmake you satisfied.