| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SY/T 6423.4-2013 | English | 244 |
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Petroleum and natural gas industries. Non-destructive testing (NDT) methods of steel tubes. Part 4: Automated ultrasonic testing of seamless and welded steel tubes for the detection of laminar imperfections
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SY/T 6423.4-2013
| Valid |
SY/T 6423.4-2013
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