| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| NB/T 10521-2021 | English | 819 |
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Days<=6
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(Technical requirements for the construction of modern, safe, efficient and green open-pit coal mines)
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NB/T 10521-2021
| Valid |
NB/T 10521-2021
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