| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 50438-2007 | English | RFQ |
ASK
|
Days<=13
|
Standard for the operation safety assessment of existing metro
|
GB/T 50438-2007
| Obsolete |
GB/T 50438-2007
|