| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SY 6442-2000 | English | 199 |
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Days<=2
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Specification for grading appraisal of petroleum drilling derricks
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SY 6442-2000
| Obsolete |
SY 6442-2000
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