| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 40548-2021 | English | 199 |
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Days<=3
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Technical specification of separate layers pressure control and combined layers drainage for coalbed methane wells
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GB/T 40548-2021
| Valid |
GB/T 40548-2021
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