1992 DUT-92-developed China's first generation of digital ultrasonic flaw detector, from digital detector no longer rely on imports.

1995-DUT-9586 developed the first domestic exclusive of epoch-making significance of the detector, for the first time detection technology into industrial computers, computer testing to achieve integration.

1997 DUT-97 unique design thinking, rational structure, refined appearance, quality is stable and reliable.

1999 DUT-998-the first time in the domestic use of electroluminescent EL displays, equipment lighter weight, superior performance.

2000 DUT-998 + high degree of integration, powerful, more intuitive man-machine dialogue.

2001 DUT-2188 launch of the company's first portable notebook detector, volume at first small, light weight at first.

2003 DUT-2188 + modeling simple, functional and pragmatic, comprehensive testing of UT meet demand.

2006 DUT exclusive domestic-7 series using current international most advanced DSP technology for design, development, this series of instruments in a set numerous advantages: fast processing speed, precision measurement data, the operation never crashed, the use of simple, convenient, fast. Testing in the sector known as the "classic" equipment.

2007 DUT-8 featuring a perfect industrial design and lightweight portable combination to meet our customers to meet the needs of field operations testing, the company retain the traditional advantages of 7 series on the basis of their structure, function further evolution of eight straight plate series Listed glory, the whole series of variety enter the domestic market testing.

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