| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SY/T 4056-1993 | English | 959 |
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Methods for radiographic inspection and quality classification of welded girth butt joints in oil and gas steel pipeline
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SY/T 4056-1993
| Obsolete |
SY/T 4056-1993
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