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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SY 6326-2012 |
The specification for grading and evaluating the loading capacity on derricks and substructure of the drilling rig and working rig 石油钻机和修井机井架底座承载能力检测评定方法及分级规范 |
China Oil & Gas Industry
Standards derricks |
 English PDF |
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