| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 39849-2021 | English | 145 |
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Non-destructive testing instruments -- Ultrasonic time-of-flight diffraction instrument -- Methods of performance tests
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GB/T 39849-2021
| Valid |
GB/T 39849-2021
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