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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SY/T 6968-2021 |
Specification for design of horizontal directional drilling crossing in oil and gas pipeline engineering{译} {译} 油气输送管道工程水平定向钻穿越设计规范 |
China Oil & Gas Industry
Standards Specification design horizontal |
 English PDF |
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