memory types
5.The types of the detection equipments and apparatus are over 100,such as X-ray detector,r-ray detector,digital ultrasonic flaw detector,eddy current flaw detector,eddy current flaw detector,magnetic memory metal diagnostic instrument,acoustic emission testing an analyzing system,three-dimensional ultrasonic testing system,microcomuterhydraulic pressureniversal testing machine,metalloscope,portable direct-read spectrograph,have achieved the national advanced technology.

