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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 20935.3-2018 |
Metal materials—Method of electromagnetic acoustic inspection—Part 3: Standard practice for ultrasonic surface examinations using electromagnetic acoustic transducer (EMAT) techniques 金属材料 电磁超声检测方法 第3部分：利用电磁超声换能器技术进行超声表面检测的方法 |
China National Standards Practice ultrasonic examination |
 English PDF |
| GB/T 22131-2008 |
Practice for ultrasonic examination from bored surfaces of cylindrical forgings 筒形锻件内表面超声波检测方法 |
China National Standards Practice ultrasonic examination |
English PDF |
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