| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| DL/T 330-2021 | English | 879 |
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Days<=6
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(Diffraction time-of-flight ultrasonic testing of metal structures and equipment welded joints in hydropower and water conservancy projects)
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DL/T 330-2021
| Valid |
DL/T 330-2021
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