
EN 10228-4 NON-DESTRUCTIVE TESTING OF STEEL FORGINGS - PART 4: ULTRASONIC TESTING OF AUSTENITIC AND AUSTENITIC-FERRITIC STAINLESS STEEL FORGINGS
出版:British Standards Institution

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EN 10228-4 NON-DESTRUCTIVE TESTING OF STEEL FORGINGS - PART 4: ULTRASONIC TESTING OF AUSTENITIC AND AUSTENITIC-FERRITIC STAINLESS STEEL FORGINGS
出版:British Standards Institution
专家解读视频