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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SY/T 5587.14-2013 |
Codes for conventional workover job. Part 14: Cementing plug and drilling out 常规修井作业规程 第14部分:注塞、钻塞 |
China Oil & Gas Industry
Standards Vent plug |
 English PDF |
| QC/T 410-1999 |
Vent-plug 通气塞 |
China Automobile & Vehicle industry
Standards Vent plug |
English PDF |
| QC/T 412-1999 |
Steel ball vent-plug 钢球式通气塞 |
China Automobile & Vehicle industry
Standards Vent plug |
English PDF |
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