| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| DL 439-1991 | English | RFQ |
ASK
|
Days<=9
|
The Technical Guide for High-Temperature Bolt of Fossil-Fired Power Plant
|
DL 439-1991
| Obsolete |
DL 439-1991
|