Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
NB/T 11434.1-2023 | English | 309 |
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Days<=3
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Paste filling in coal mine - Part 1: Technical requirements of goaf isolation in fully mechanized mining face
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NB/T 11434.1-2023
| Valid |
NB/T 11434.1-2023
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