| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| NB/T 51067-2017 | English | RFQ |
ASK
|
3 days [Need to translate]
|
(Technical Specification for Top Coal Recovery in Fully Mechanized Caving Face)
| Valid |
NB/T 51067-2017
|