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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| SY/T 6553-2003 |
Piping inspection code Inspection, repair, alteration, and rerating of in-service piping systems 管道检验规范 在用管道系统检验、修理、改造和再定级 |
China Oil & Gas Industry
Standards rerating |
 English PDF |
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