| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| NB/T 11168-2023 | English | RFQ |
ASK
|
Days<=3
|
(Technical specifications for drilling holes and hole protection for underground gas drainage in coal mines)
|
NB/T 11168-2023
| Valid |
NB/T 11168-2023
|