| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | Related Standard |
| YB 4391-2013 | English | RFQ |
ASK
|
Days<=3
|
Code for acceptance of sinking and drifting engineering of ferrous mines
| Valid |
YB 4391-2013
|
| YB 4391-2013 | Chinese | RFQ |
ASK
|
<=1-day
|
[PDF from Chinese Authority, or Standard Committee, or Publishing House]
| |
|