ASNT SNT-TC-1A-C-2014 Ultrasonic Testing (超声检测)
SUPPLEMENT TO RECOMMENDED PRACTICE NO. SNT-TC-1A - ULTRASONIC TESTING METHOD
Includes all amendments and changes through Errata , July 2015

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ASNT SNT-TC-1A-C-2014 Ultrasonic Testing (超声检测)
SUPPLEMENT TO RECOMMENDED PRACTICE NO. SNT-TC-1A - ULTRASONIC TESTING METHOD
Includes all amendments and changes through Errata , July 2015