| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| GB/T 50861-2024 | English | RFQ |
ASK
|
3 days [Need to translate]
|
(Urban rail transit project quantity calculation standard (with clause explanation))
| Valid |
| GB 50861-2013 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Standard method of measurement for urban transit railway works
| Valid |