Founded in 1958, it is in an advanced position in the manufacturing and production of non-destructive testing equipment and accessories for ultrasonic products, and is used in petrochemical, heavy industry, machinery manufacturing, metallurgy and mining, transportation and new energy industries. Sonatest in the UK was acquired by Dehua Materials Testing and Sofranel of France. Sonatest in the UK currently has 100 dealers and agents in 75 countries.