| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| DL/T 820.3-2020 | English | 599 |
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Days<=5
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Code of ultrasonic testing technique for butt welds of pipes - Part 3: Time of flight diffraction
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DL/T 820.3-2020
| Valid |
DL/T 820.3-2020
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