Youdu Trade Co., Ltd is specialized in marketing of non-destructive testing instruments and gages. Our main products are digital ultrasonic flaw detectors, portable metal hardness testers, handle ultrasonic thickness gages etc. More and more new products will be offered to the market. Our company’s instruments are widely used in power industry, petroleum and chemical industry, pressure vessel manufacturing industry and so on, for providing quality control procedure. Customers are satisfied by the high-quality, good reliability of its instruments and its prompt after-sale services. Read More ...