| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| SY/T 5426-2016 | English | 209 |
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Days<=3
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Drilling engineering for the petroleum and natural gas. Rock drillability measurement and its grading
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SY/T 5426-2016
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SY/T 5426-2016
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