TRANSDUCERS THAT UTILIZE ULTRASONIC OSCILLATIONS TO [ TEST FOR STRESS AND FATIGUE IN METAL STRUCTURES, AND TO ] TREAT AND REDUCE STRESS AND FATIGUE OF METALS AND METAL STRUCTURES, AND ACCESSORIES THEREFOR

testing of metals and metal structures for stress and fatigue by using ultrasonic oscillations through specially designed tools and transducers

treatment of metals and metal structures to reduce stress and metal fatigue and to change other properties by using ultrasonic oscillations through specially designed tools and transducers