Our company named Nantong Union Digital Technology Development Co. Ltd. is specialized in developing, manufacturing and marketing of portable digital ultrasonic flaw detectors, TOFD, ultrasonic imaging systems and automated digital ultrasonic flaw detecting systems. In addition, our company is the leading manufacturer of portable digital ultrasonic flaw detectors in China and enjoys the largest market share in our domestic market. Compared with the similar products of other manufacturers in China, our products are leading both in technology and quality. We provide excellent after-sale service for all the customers.