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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SY/T 0452-2021 |
Qualification of welding procedures for oil and gas metal pipelines{译} {译} 石油天然气金属管道焊接工艺评定 |
China Oil & Gas Industry
Standards Qualification welding procedures |
 English PDF |
| DL/T 868-2014 |
Qualification standard for welding procedures 焊接工艺评定规程 |
China Electricity & Power
Standards Qualification welding procedures |
English PDF |
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